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	<title>z80 &amp;laquo; WordPress.com Tag Feed</title>
	<link>http://en.wordpress.com/tag/z80/</link>
	<description>Feed of posts on WordPress.com tagged "z80"</description>
	<pubDate>Sat, 05 Dec 2009 01:19:42 +0000</pubDate>

	<generator>http://en.wordpress.com/tags/</generator>
	<language>en</language>

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<title><![CDATA[MSX (I): El comienzo de un estandar]]></title>
<link>http://informaticaenred.wordpress.com/2009/11/27/msx-i-el-comienzo-de-un-estandar/</link>
<pubDate>Fri, 27 Nov 2009 21:44:17 +0000</pubDate>
<dc:creator>rafael1193</dc:creator>
<guid>http://informaticaenred.wordpress.com/2009/11/27/msx-i-el-comienzo-de-un-estandar/</guid>
<description><![CDATA[Pantalla de inicio del MSX A principios de los 80, con los inicios de los ordenadores personales, mu]]></description>
<content:encoded><![CDATA[Pantalla de inicio del MSX A principios de los 80, con los inicios de los ordenadores personales, mu]]></content:encoded>
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<title><![CDATA[Company Profile: Alpha Digital Systems (ADS; Boone, N.C.)]]></title>
<link>http://classictech.wordpress.com/2009/11/27/company-profile-alpha-digital-systems-ads-boone-n-c/</link>
<pubDate>Fri, 27 Nov 2009 20:21:56 +0000</pubDate>
<dc:creator>mnadeau</dc:creator>
<guid>http://classictech.wordpress.com/2009/11/27/company-profile-alpha-digital-systems-ads-boone-n-c/</guid>
<description><![CDATA[Alpha Digital Systems (ADS) Alpha Z-80 (1977, early micro) Original Retail Price: $495 Base Configur]]></description>
<content:encoded><![CDATA[<div class='snap_preview'><p>Alpha Digital Systems (ADS) Alpha Z-80 (1977, early micro)<br />
<em>Original Retail Price:</em> $495<br />
<em>Base Configuration:</em> Z80 CPU, 12 S-100 slots, power supply<br />
<em>Important Options:</em> 22-slot chassis</p>
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<title><![CDATA[Processor built with Transistor-Transistor Logic]]></title>
<link>http://hackaday.com/2009/10/30/processor-built-with-transistor-transistor-logic/</link>
<pubDate>Fri, 30 Oct 2009 18:02:12 +0000</pubDate>
<dc:creator>Mike Szczys</dc:creator>
<guid>http://hackaday.com/2009/10/30/processor-built-with-transistor-transistor-logic/</guid>
<description><![CDATA[[Donn] wanted know exactly what is going on inside of a processor so naturally he built a CPU out of]]></description>
<content:encoded><![CDATA[<div class='snap_preview'><p><img class="alignnone size-full wp-image-17942" title="cpu-built-from-ttl" src="http://hackadaycom.wordpress.com/files/2009/10/cpu-built-from-ttl.jpg" alt="cpu-built-from-ttl" width="470" height="303" /></p>
<p>[Donn] wanted know exactly what is going on inside of a processor so naturally <a href="http://cpuville.com/">he built a CPU out of TTL components</a>. He had previously built a couple of versions of a computer <a href="http://hackaday.com/2009/09/07/proto-board-z80-computer/">based on the Z80 processor</a>. Using the troubleshooting skills he learned and a second-hand textbook, he set to work using 74LS series chips connected using the wire-wrap method we&#8217;re familiar with <a href="http://hackaday.com/2009/02/27/bmow-a-home-made-cpu/">from other cpu projects</a>.</p>
<p>The finished product runs well at 1.8 megahertz, but he also included a 2 hertz clock and a step clock for debugging. At the slower speeds, the register board (seen at the left in the picture above) lights LEDs and can be used to tell what the CPU is currently working on. Programming is accomplished through either  a dumb terminal or a PC running a terminal emulator.</p>
<p>His writeup is from about five years ago but that didn&#8217;t prevent us from getting that fuzzy feeling in the geek-center of our brain when we read about it. It is well written and thorough so if you&#8217;re into this kind of thing there&#8217;s plenty to enjoy.</p>
<p>[Thanks Raleigh]</p>
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<title><![CDATA[Proto-board Z80 computer]]></title>
<link>http://hackaday.com/2009/09/07/proto-board-z80-computer/</link>
<pubDate>Mon, 07 Sep 2009 19:34:25 +0000</pubDate>
<dc:creator>Mike Szczys</dc:creator>
<guid>http://hackaday.com/2009/09/07/proto-board-z80-computer/</guid>
<description><![CDATA[We&#8217;ve seen  Z80 processor based computers before but they usually use a printed circuit board ]]></description>
<content:encoded><![CDATA[<div class='snap_preview'><p><img class="alignnone size-full wp-image-14926" title="diy_zilog" src="http://hackadaycom.wordpress.com/files/2009/09/diy_zilog.jpg" alt="diy_zilog" width="470" height="353" /></p>
<p>We&#8217;ve seen <a href="http://hackaday.com/2009/01/10/n8vem-single-board-z80-computer/"> Z80 processor based computers</a> before but they usually use a printed circuit board to easily and reliably connect all the components. [Marton] sent us <a href="http://digitarworld.uw.hu/z80.htm">his Z80 based computer</a> from a while back that is built entirely on prototyping board. He made his own video board that utilizes a TV as the monitor and his own mainboard incorporating a keyboard controller. The system runs at 4 MHz, has 32k of ram, and runs [Marton's] own system software which he has posted. Its quite impressive and we love the protoboard porn with thousands of grey wires running everywhere.</p>
<p><span style="font-size:small;">[Marton] used </span><span style="font-size:small;">the resources on </span><span style="font-size:small;">[Hans Summers'] site </span><span style="font-size:small;">for his project. Make sure to check it out if you&#8217;re interested in a broader <a href="http://www.hanssummers.com/newz80.html">background concerning DIY Zilog Z80 computers</a>.<br />
</span></p>
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<title><![CDATA[Exidy Sorcerer vendu 370$US]]></title>
<link>http://rhodblog.wordpress.com/2009/06/22/exidy-sorcerer-vendu-370us/</link>
<pubDate>Mon, 22 Jun 2009 07:21:48 +0000</pubDate>
<dc:creator>Rhod</dc:creator>
<guid>http://rhodblog.wordpress.com/2009/06/22/exidy-sorcerer-vendu-370us/</guid>
<description><![CDATA[Ce micro me plait depuis de nombreuses années, et je dois dire que voir celui se vendre est un crève]]></description>
<content:encoded><![CDATA[<div class='snap_preview'><p style="text-align:center;"><img class="aligncenter size-full wp-image-1272" title="ex1" src="http://rhodblog.wordpress.com/files/2009/06/ex1.jpg" alt="ex1" width="499" height="199" /></p>
<p>Ce micro me plait depuis de nombreuses années, et je dois dire que voir celui se vendre est un crève coeur, ou presque. Il est en bon état esthétique, en boite&#8230; j&#8217;ai toujours aimé son look très particulier. Un micro difficile a trouver, mais là, c&#8217;est pas le moment, les finances sont au plus bas, et les vacances arrivent !</p>
<p style="text-align:center;"><img class="aligncenter size-full wp-image-1273" title="ex2" src="http://rhodblog.wordpress.com/files/2009/06/ex2.jpg" alt="ex2" width="500" height="265" /></p>
<p style="text-align:center;"><img class="aligncenter size-full wp-image-1274" title="ex3" src="http://rhodblog.wordpress.com/files/2009/06/ex3.jpg" alt="ex3" width="500" height="300" /></p>
<p style="text-align:center;"><img class="aligncenter size-full wp-image-1275" title="ex4" src="http://rhodblog.wordpress.com/files/2009/06/ex4.jpg" alt="ex4" width="499" height="357" /></p>
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<title><![CDATA[Software developer seeking job]]></title>
<link>http://spillerlaszlo.wordpress.com/2009/03/24/software-developer-seeking-job/</link>
<pubDate>Tue, 24 Mar 2009 12:36:52 +0000</pubDate>
<dc:creator>Spiller László</dc:creator>
<guid>http://spillerlaszlo.wordpress.com/2009/03/24/software-developer-seeking-job/</guid>
<description><![CDATA[Has been working as an IT professional for 17 years now, during which he gained 4 years of experienc]]></description>
<content:encoded><![CDATA[Has been working as an IT professional for 17 years now, during which he gained 4 years of experienc]]></content:encoded>
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<title><![CDATA[LOAD "CAS:",R]]></title>
<link>http://modulado.wordpress.com/2009/02/18/load-cas-r/</link>
<pubDate>Wed, 18 Feb 2009 18:04:02 +0000</pubDate>
<dc:creator>rfpp</dc:creator>
<guid>http://modulado.wordpress.com/2009/02/18/load-cas-r/</guid>
<description><![CDATA[En la sección 8bit me gusta hacer recordatorio a modo de museo de todas aquellas aventuras fascinant]]></description>
<content:encoded><![CDATA[<div class='snap_preview'><p><a href="http://es.wikipedia.org/wiki/Zilog_Z80"><img class="alignleft" src="http://upload.wikimedia.org/wikipedia/commons/4/40/Z84C0010FEC_LQFP.png" alt="" width="161" height="137" /></a></p>
<p style="text-align:justify;">En la sección 8bit me gusta hacer recordatorio a modo de museo de todas aquellas aventuras fascinantes que rodeaban al mundo del Z80. Aunque ya os he hablado <a href="http://modulado.wordpress.com/2008/11/09/demoscene-en-msx-un-viaje-en-el-tiempo/" target="_blank">sobre los MSX</a> voy a volver a hacer una pequeña y breve inmersión en esta fantástica plataforma.</p>
<p style="text-align:justify;">Los MSX eran ordenadores de 8 bits cuyo corazón era ni más ni menos que el Z80 (imagen de la izquierda). Quizás si os hablo de MSX a la gran mayoría os suene a chino, pero si digo Spectrum seguro que a mas de uno le viene a la memoria aquella birria de juegos en cinta con los que te pasabas las horas muertas esperando aquellas interminables cargas. En su día, disfruté de ardientes debates con viejos amigos sobre lo buenas o malas que eran unas u otras plataformas (MSX vs Spectrum), pero la verdad, es que en España tuvimos muy mala suerte. Si que es cierto que la oferta de MSX aquí fue muy pobre. La gran mayoría de juegos que llegaban a nuestro mercado eran de compañías de la calaña de Erbe o TOPO SOFT -por mencionar a alguna-, que solo distribuían juegos de mala calidad que portaban desde Spectrum (que a su vez eran juegos portados desde Amstrad y estos a su vez desde Amiga&#8230;). Este mercado de juegos recalcitrantes ratificaban la mala calidad de los mismos, dándole mala publicidad a los MSX, pues según &#8220;los expertos&#8221; estos juegos corrían mejor en un spectrum -ese fue el día en que descubrí que las cintas de casete tenían piernas-. </p>
<p style="text-align:justify;">No obstante, los que pudimos disfrutar de un MSX2, MSX2+ o un MSX2TR, tuvimos la suerte de poder deleitarnos con grandes clásicos de Konami, como el actualmente famoso Metal Gear (1987) y Metal Gear 2: Solid Snake (1990), o Parodius, los Hyper sports&#8230; O la saga de Aleste de manos de COMPILE. Podría pasarme horas y horas recordando todos y cada uno de aquellos maravillosos juegos, pero a decir verdad, lo que hacía grande esta plataforma no era solo los juegos. Por poner un ejemplo, en la estación espacial Mir se usaba un Sony HB-900p para la edición de video, y no, esa no fue la causa por la que la estación espacial se fuera al garete.</p>
<p style="text-align:justify;">Espero haber despertado la suficiente curiosidad para que, en caso de que no conocierais los MSX, salgáis a google como perros rabiosos en busca de mas información, incluso, que os bajéis alguno de los emuladores que existen y sintáis mas a fondo una auténtica experiencia MSX.</p>
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<title><![CDATA[Bajada impresionante del precio de la CASIO Exilim Pro EX-Z80]]></title>
<link>http://nogastesdemasiado.wordpress.com/2009/02/11/bajada-impresionante-del-precio-de-la-casio-exilim-pro-ex-z80/</link>
<pubDate>Wed, 11 Feb 2009 16:16:10 +0000</pubDate>
<dc:creator>nogastesdemasiado</dc:creator>
<guid>http://nogastesdemasiado.wordpress.com/2009/02/11/bajada-impresionante-del-precio-de-la-casio-exilim-pro-ex-z80/</guid>
<description><![CDATA[Hola nogasteros, La pequeña cámara de CASIO, está batiendo records de ventas en todo el país. Se enc]]></description>
<content:encoded><![CDATA[<div class='snap_preview'><p>Hola nogasteros,</p>
<p><!--[if gte mso 9]&#62;  Normal 0   21   false false false  ES X-NONE X-NONE              MicrosoftInternetExplorer4              &#60;![endif]--><!--[if gte mso 9]&#62;                                                                                                                                            &#60;![endif]--> <!--[if gte mso 10]&#62;--> <!--[endif]--></p>
<p class="MsoNormal">La pequeña cámara de CASIO, está batiendo records de ventas en todo el país. Se encuentra en los Top 10 de productos más vendidos de las páginas de venta on-line más importantes y mucho es debido a sus continuas bajadas de precio. En nogastesdemasiado, como es habitual, tenemos los precios más bajos al alcance de todos los usuarios de internet. La EXZ80 baja a los 78 €. Un regalo sin duda.</p>
<p class="MsoNormal">
<p class="MsoNormal">
<p>&#160;<br />
&#160;</p>
<p style="text-align:center;"><a href="http://nogastesdemasiado.com/precio/Casio-Exilim-EX-Z80-136044.html"><img class="aligncenter" src="http://www.exilim.de/press_pictures/exz80black_front.jpg" alt="http://www.exilim.de/press_pictures/exz80black_front.jpg" width="179" height="122" /></a></p>
<p>&#160;</p>
<p style="text-align:center;">
<p><a href="http://www.nogastesdemasiado.com/">www.nogastesdemasiado.com</a></p>
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<title><![CDATA[لغتنامه های برتر 2009]]></title>
<link>http://ourshop.wordpress.com/2009/02/10/%d9%84%d8%ba%d8%aa%d9%86%d8%a7%d9%85%d9%87-%d9%87%d8%a7%db%8c-%d8%a8%d8%b1%d8%aa%d8%b1-2009/</link>
<pubDate>Tue, 10 Feb 2009 14:57:51 +0000</pubDate>
<dc:creator>حسین</dc:creator>
<guid>http://ourshop.wordpress.com/2009/02/10/%d9%84%d8%ba%d8%aa%d9%86%d8%a7%d9%85%d9%87-%d9%87%d8%a7%db%8c-%d8%a8%d8%b1%d8%aa%d8%b1-2009/</guid>
<description><![CDATA[ترجمه متون در 20 زبان مختلف دنیا با MultiTranse 5.1.1 : ترجمه متون در 20 زبان مختلف دنیا با MultiTra]]></description>
<content:encoded><![CDATA[<div class='snap_preview'><p class="MsoNormal" style="text-align:right;direction:rtl;unicode-bidi:embed;" dir="rtl"><a href="http://iran.bz/detail.php?vendors=51080295&#38;id=1125&#38;AdsID=10154&#38;ads_type="><span style="font-family:&#34;" lang="AR-SA">ترجمه متون در 20 زبان مختلف دنیا با</span><span dir="ltr"> MultiTranse 5.1.1 </span></a><span style="font-family:&#34;" lang="AR-SA"><span> </span>: </span><span style="font-family:&#34;" lang="AR-SA">ترجمه متون در 20 زبان مختلف دنیا با</span><span dir="ltr"> MultiTranse 5.1.1</span></p>
<p class="MsoNormal" style="text-align:right;direction:rtl;unicode-bidi:embed;" dir="rtl"><a href="http://iran.bz/detail.php?vendors=51080332&#38;id=139&#38;AdsID=10154&#38;ads_type="><span style="font-family:&#34;" lang="AR-SA">ديكشنري نارسيس5</span><span dir="ltr">(Narsys Dictionery 5)</span></a><span style="font-family:&#34;" lang="AR-SA"> : </span><span style="font-family:&#34;" lang="AR-SA">مجموعه اشتثنايي جهت يادگيري تلفظ و املاي كليه لغات زبان انگليسي</span></p>
<p class="MsoNormal" style="text-align:right;direction:rtl;unicode-bidi:embed;" dir="rtl"><a href="http://iran.bz/detail.php?vendors=51080321&#38;id=147&#38;AdsID=10154&#38;ads_type="><span style="font-family:&#34;" lang="AR-SA">واژه نامه 2007</span><span dir="ltr"> Dictionary collection </span></a><span style="font-family:&#34;" lang="AR-SA"><span> </span>: </span><span style="font-family:&#34;" lang="AR-SA">مجموعه فرهنگ لغات شامل فرهنگ لغات انگليسي به زبان فارسي و بالعكس</span></p>
<p class="MsoNormal" style="text-align:right;direction:rtl;unicode-bidi:embed;" dir="rtl"><a href="http://iran.bz/detail.php?vendors=51080336&#38;id=10&#38;AdsID=10154&#38;ads_type="><span style="font-family:&#34;" lang="AR-SA">فرهنگ لغت لانگ من</span></a><span style="font-family:&#34;" lang="AR-SA"> : </span><span style="font-family:&#34;" lang="AR-SA">کاملترین فرهنگ لقت انگلیسی به انگلیسی یادگیری انگلسیس و</span><span dir="ltr">..</span><span style="font-family:&#34;" lang="AR-SA">.</span></p>
<p class="MsoNormal" style="text-align:right;direction:rtl;unicode-bidi:embed;" dir="rtl"><a href="http://iran.bz/detail.php?vendors=86030002&#38;id=314&#38;AdsID=10154&#38;ads_type="><span style="font-family:&#34;" lang="AR-SA">مترجم متن 16 زبان , حتي فارسي</span></a><span style="font-family:&#34;" lang="AR-SA"> : </span><span style="font-family:&#34;" lang="AR-SA">سايت هاي خارجي را با زبان فارسي باز كنيد . سازگاري كامل با محيط هاي مختلف</span></p>
<p class="MsoNormal" style="text-align:right;direction:rtl;unicode-bidi:embed;" dir="rtl"><a href="http://iran.bz/detail.php?vendors=51080336&#38;id=81&#38;AdsID=10154&#38;ads_type="><span dir="ltr">Longman Dictionary of Contemporary 4th Updated Edition &#8211; 2 CD Version &#8211; Full</span></a><span style="font-family:&#34;" lang="AR-SA"> : </span><span style="font-family:&#34;" lang="AR-SA">بهترين ديكشنري دنيا به گفته خيلي ها رو آماده برای خرید شما</span><span dir="ltr">&#8230;</span></p>
<p class="MsoNormal" style="text-align:right;direction:rtl;unicode-bidi:embed;" dir="rtl"><a href="http://iran.bz/detail.php?vendors=51080250&#38;id=77&#38;AdsID=10154&#38;ads_type="><span style="font-family:&#34;" lang="AR-SA">لغت نامه 43 زبان دنيا + تقويت حافظه و تلفظ</span></a><span style="font-family:&#34;" lang="AR-SA"> : </span><span style="font-family:&#34;" lang="AR-SA">لغت نامه 43 زبان دنيا + تقويت حافظه و تلفظ +برنامه هاي اختصاصي+ تقويت حافظه</span></p>
<p class="MsoNormal" style="text-align:right;direction:rtl;unicode-bidi:embed;" dir="rtl"><a href="http://iran.bz/detail.php?vendors=71240039&#38;id=14&#38;AdsID=10154&#38;ads_type="><span style="font-family:&#34;" lang="AR-SA">مجموعه ديكشنري</span></a><span style="font-family:&#34;" lang="AR-SA"> : </span><span style="font-family:&#34;" lang="AR-SA">مجموعه‌اي از 6 ديكشنري پركاربرد در 3</span><span dir="ltr">CD</span></p>
<p class="MsoNormal" style="text-align:right;direction:rtl;unicode-bidi:embed;" dir="rtl"><a href="http://iran.bz/detail.php?vendors=51080191&#38;id=3&#38;AdsID=10154&#38;ads_type="><span style="font-family:&#34;" lang="AR-SA">دايره المعارف كامل جهان محصول قدرتمند شركت مايكروسافت</span><span dir="ltr">_Microsoft Encarta 2008</span></a><span style="font-family:&#34;" lang="AR-SA">: </span><span style="font-family:&#34;" lang="AR-SA">ظیم ترین دائره المعارف چند رسانه ای جهان در تمام موضوعات,با هزاران عکس و ویدئو</span></p>
<p class="MsoNormal" style="text-align:right;direction:rtl;unicode-bidi:embed;" dir="rtl"><a href="http://iran.bz/detail.php?vendors=51080301&#38;id=436&#38;AdsID=10154&#38;ads_type="><span style="font-family:&#34;" lang="AR-SA">فرهنگ لقت چکاوک</span></a><span style="font-family:&#34;" lang="AR-SA"> : </span><span style="font-family:&#34;" lang="AR-SA">کلیک کن می فهمی چیه .</span></p>
<p class="MsoNormal" style="text-align:right;direction:rtl;unicode-bidi:embed;" dir="rtl"><a href="http://iran.bz/detail.php?vendors=51080301&#38;id=435&#38;AdsID=10154&#38;ads_type="><span style="font-family:&#34;" lang="AR-SA">مترجم صوتی</span></a><span style="font-family:&#34;" lang="AR-SA">:</span><span style="font-family:&#34;" lang="AR-SA"> کلیک کن می فهمی چیه.</span></p>
<p class="MsoNormal" style="text-align:right;direction:rtl;unicode-bidi:embed;" dir="rtl"><a href="http://iran.bz/detail.php?vendors=51080301&#38;id=432&#38;AdsID=10154&#38;ads_type="><span style="font-family:&#34;" lang="AR-SA">مترجم متن پارس</span></a><span style="font-family:&#34;" lang="AR-SA">:</span><span style="font-family:&#34;" lang="AR-SA"> کلیک کن می فهمی چیه .</span></p>
<p class="MsoNormal" style="text-align:right;direction:rtl;unicode-bidi:embed;" dir="rtl"><a href="http://iran.bz/detail.php?vendors=51080301&#38;id=417&#38;AdsID=10154&#38;ads_type="><span dir="ltr">1100 </span><span style="font-family:&#34;" lang="AR-SA">لغت انگلیسی در اخبار</span></a><span style="font-family:&#34;" lang="AR-SA"> : </span><span style="font-family:&#34;" lang="AR-SA">خبر انگلیسی گوش دهید.</span></p>
<p class="MsoNormal" style="text-align:right;direction:rtl;unicode-bidi:embed;" dir="rtl"><a href="http://iran.bz/detail.php?vendors=51080191&#38;id=103&#38;AdsID=10154&#38;ads_type="><span dir="ltr">Microsoft Student With Encarta Premium 2009</span></a><span style="font-family:&#34;" lang="AR-SA"> : </span><span style="font-family:&#34;" lang="AR-SA">نرم افزار بسیار عالی</span><span dir="ltr"> Encarta </span><span style="font-family:&#34;" lang="AR-SA">محصول شرکت</span><span dir="ltr"> Microsoft </span><span style="font-family:&#34;" lang="AR-SA">محصول سال 2009</span></p>
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<title><![CDATA[Z-80 Simulator]]></title>
<link>http://mhdalvin.wordpress.com/2008/11/13/z80-simulator/</link>
<pubDate>Thu, 13 Nov 2008 13:33:52 +0000</pubDate>
<dc:creator>muhammad alvin</dc:creator>
<guid>http://mhdalvin.wordpress.com/2008/11/13/z80-simulator/</guid>
<description><![CDATA[Z-80 Simulator There is a great tool for everybody that is studying Zilog Z-80 microprocessor. By us]]></description>
<content:encoded><![CDATA[Z-80 Simulator There is a great tool for everybody that is studying Zilog Z-80 microprocessor. By us]]></content:encoded>
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<title><![CDATA[London 2008]]></title>
<link>http://mbahnet.wordpress.com/2008/10/10/london-2008/</link>
<pubDate>Fri, 10 Oct 2008 13:05:09 +0000</pubDate>
<dc:creator>ms24503</dc:creator>
<guid>http://mbahnet.wordpress.com/2008/10/10/london-2008/</guid>
<description><![CDATA[Travelled on 10/6 to London with my family on a short vacation. Here are some pictures, more to foll]]></description>
<content:encoded><![CDATA[<div class='snap_preview'><p>Travelled on 10/6 to London with my family on a short vacation. Here are some pictures, more to follow.</p>
<p>Saw and visited Maplin electronics, a store from which l used to mail-order electronic components and wait for ages for the shipment to west africa to arrive when l got hooked on micro-electronics, z80 microprocessors etc.</p>
<p>On Thursday we visited the Greenwich Observatory. We took london bus #188 to Greenwich and walked the rest of the way through the vast green park to the observatory.</p>
<p> </p>

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<title><![CDATA[polyplay - arcade-automat made in ddr]]></title>
<link>http://murdeltas.wordpress.com/2008/10/01/polyplay-arcade-automat-made-in-ddr/</link>
<pubDate>Wed, 01 Oct 2008 19:45:00 +0000</pubDate>
<dc:creator>marc</dc:creator>
<guid>http://murdeltas.wordpress.com/2008/10/01/polyplay-arcade-automat-made-in-ddr/</guid>
<description><![CDATA[im grunde bin ich aeusserst froh nicht mehr viel von der ddr mitbekommen zu haben. aber hin und wied]]></description>
<content:encoded><![CDATA[<div class='snap_preview'><p>im grunde bin ich aeusserst froh nicht mehr viel von der <a href="http://de.wikipedia.org/wiki/Deutsche_Demokratische_Republik">ddr</a> mitbekommen zu haben. aber hin und wieder hoert und liest man von sachen, die haette man schon gerne mal selber miterleben wollen, nur um spaeter mal sagen zu koennen, dass man das selber noch mitgemacht hat.</p>
<p><img src="http://upload.wikimedia.org/wikipedia/commons/8/8f/Polyplay.jpg" alt="polyplay" width="300"></p>
<p>der <a href="http://de.wikipedia.org/wiki/Polyplay">polyplay</a> war der einzige arcade-automat der ddr und konnte immerhin mit 8 spielen aufwarten:<br />
<blockquote><i>Hirschjagd (ähnlich Robotron: 2084)<br />Hase und Wolf (ähnlich Pac-Man, basiert auf russischer TV-Trickserie „Nu, Pogodi!“)<br />Abfahrtslauf<br />Schmetterlinge<br />Schießbude<br />Autorennen (ähnl. Gran Trak 10, der 1. Rennsimulation)<br />Merkspiel (auch Opto-akust. Merkspiel)<br />Wasserrohrbruch (Tropfen fallen von oben)</i></p></blockquote>
<p>der polyplay hatte einen eingebauten fernseher um die 8 farben bei einer aufloesung von 512&#215;256 pixeln darzustellen. er lief mit einem <a href="http://de.wikipedia.org/wiki/Z80">z80</a>-klon und war mit 2,457600 mhz getaktet. 1986 kam er auf den markt und kostete damals rund 22.000 <a href="http://de.wikipedia.org/wiki/Mark_der_DDR">ostmark</a></p>
<p>[via <a href="http://blog.stuttgarter-zeitung.de/?p=824">glaserei</a>]</p>
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<title><![CDATA[Mein erstes Buch]]></title>
<link>http://boltac.wordpress.com/2008/08/28/mein-erstes-buch/</link>
<pubDate>Thu, 28 Aug 2008 13:08:00 +0000</pubDate>
<dc:creator>Boltac</dc:creator>
<guid>http://boltac.wordpress.com/2008/08/28/mein-erstes-buch/</guid>
<description><![CDATA[Um genau zu sein, mein erstes Programmier-Buch war: Das war Anfang der 80er und die einzige Möglichk]]></description>
<content:encoded><![CDATA[<div class='snap_preview'><p>Um genau zu sein, mein erstes Programmier-Buch war:</p>
<p><a href="http://boltac.wordpress.com/files/2008/08/51a59ckwf9l_ss500_.jpg"><img class="aligncenter size-full wp-image-73" src="http://boltac.wordpress.com/files/2008/08/51a59ckwf9l_ss500_.jpg" alt="" width="468" height="468" /></a></p>
<p>Das war Anfang der 80er und die einzige Möglichkeit auf meinem <a href="http://www.zock.com/8-Bit/D_Laser200.HTML">VZ200</a> Computer Spiele zu spielen war, ich musste sie selber programmieren.</p>
<p>Schnell wurde mir klar, dass ich mit dem eingebauten Basic nicht weit kam, also kaufte ich mir besagtes Buch, in der Ausgabe mit gelbem Cover und programmierte mein erstes Spiel.</p>
<p>Spiel war vielleicht zu viel gesagt, es handelte sich dabei um den 100m Lauf aus Decathlon. Aber immerhin wurde die Zeit gemessen und so konnte man zumindest versuchen seinen Rekord zu verbessern.</p>
<p>Als ich dann auf den C64 umstieg, begleitete mich auch dort das 6502 Buch von Rodnay Zaks und half mir dabei einen der ersten Floppy-Beschleuniger zu schreiben. Auch bei der meiner Meinung nach schnellsten Line-Routine auf dem C64 zog ich dieses Buch zur Optimierung (Taktzyklen zählen) des Algorithmus heran. Abgeleitet war er vom <a href="http://de.wikipedia.org/wiki/Bresenham-Algorithmus">Bresenham-Algorithums</a> den ich jedoch so vereinfachte, dass er ohne Abfragen und mit einfacher Integer Addition funktionierte.</p>
<p>Rodnay Zaks hat mich in die Geheimnisse der Maschinensprache eingeführt, und dafür bin ich ihm sehr dankbar. Ich kann somit durchaus behaupten, dass mein erstes Buch ein wirklich gutes Buch war <img src='http://s.wordpress.com/wp-includes/images/smilies/icon_wink.gif' alt=';)' class='wp-smiley' /> </p>
<p>Natürlich würde mich auch interessieren, welches euer erstes Buch war und welche Lehren ihr daraus gezogen habt. Also nicht genieren und hier antworten <img src='http://s.wordpress.com/wp-includes/images/smilies/icon_smile.gif' alt=':)' class='wp-smiley' /> </p>
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<title><![CDATA[Z80 based systems still kicking]]></title>
<link>http://apriljayres.wordpress.com/2008/07/29/z80-based-systems-still-kicking/</link>
<pubDate>Tue, 29 Jul 2008 02:42:30 +0000</pubDate>
<dc:creator>April Ayres-Griffiths</dc:creator>
<guid>http://apriljayres.wordpress.com/2008/07/29/z80-based-systems-still-kicking/</guid>
<description><![CDATA[It&#8217;s nice to know the Z80 is still alive and kicking in one form or another.  Melody bought a ]]></description>
<content:encoded><![CDATA[<div class='snap_preview'><p>It&#8217;s nice to know the Z80 is still alive and kicking in one form or another. </p>
<p>Melody bought a chinese ipod knockoff, and it is powered by a 32Mhz Z80 based CPU.  Scarily enough the thing plays video too, although admittedly a custom format called AMV, which only had windows software available for conversion. Since we are currently using a mac, we downloaded a special version of ffmpeg, which supports AMV, however it crashed unless we disabled altivec support (we are using a G3), and then actually failed to link because a subroutine was not compiled unless altivec was enabled.  </p>
<p>After some coaxing, I managed to get it to compile, and we can now convert videos to the device quite happily.  I&#8217;ll need to get around to creating a patch for ffmpeg so this problem is fixed permanently.</p>
<p>Oh, well.</p>
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<title><![CDATA[TRS-80 von TANDY]]></title>
<link>http://riwer.wordpress.com/2008/03/05/trs-80-von-tandy/</link>
<pubDate>Wed, 05 Mar 2008 12:17:30 +0000</pubDate>
<dc:creator>riwer</dc:creator>
<guid>http://riwer.wordpress.com/2008/03/05/trs-80-von-tandy/</guid>
<description><![CDATA[Der Nascom I Computer war mein erster Einstieg in dem Bereich Personal Computer, soweit man von eine]]></description>
<content:encoded><![CDATA[<div class='snap_preview'><p>Der <b>Nascom I</b> Computer war mein erster Einstieg in dem Bereich Personal Computer, soweit man von einem <b>Einplatinen Computer</b> schon von einem <b>Personal Computer</b> sprechen kann. Er kam als Bausatz und man musste schon wissen, wie man mit einem Lötkolben umgeht. Ziemlich schnell schon stieß ich mit meinen Wünschen, bzgl. der Möglichkeiten, die sich mir boten, an die Grenzen. Also musste ein besserer Computer her.</p>
<p><img style="float:left;margin:10px;" height="196" alt="trs80-model-i.jpg" src="http://riwer.wordpress.com/files/2008/03/trs80-model-i.jpg" width="226" border="1">1978 wurde sehr stark für drei Fertigcomputer in der Fachpresse geworben, dem <b><a href="http://de.wikipedia.org/wiki/PET_2001">PET 2001</a></b> von <b><a href="http://de.wikipedia.org/wiki/Commodore_International">Commodore</a></b>, dem <b><a href="http://de.wikipedia.org/wiki/Tandy_TRS_80_Model_1">TRS-80</a></b> von <b><a href="http://en.wikipedia.org/wiki/Tandy_Corporation">Tandy</a></b> und dem <b><a href="http://de.wikipedia.org/wiki/Apple_II">Apple II</a></b>. PET und Apple benutzten als Mikroprozessor den <b><a href="http://de.wikipedia.org/wiki/MOS_Technology_6502">6502</a></b> von <a href="http://de.wikipedia.org/wiki/MOS_Technology">MOS Technology</a> und der <b><a href="http://oldcomputers.net/trs80i.html">TRS-80</a></b> den <b><a href="http://de.wikipedia.org/wiki/Zilog_Z80">Z80</a></b> von <b><a href="http://de.wikipedia.org/wiki/Zilog">Zilog</a></b>.</p>
<p>Da ich durch den Nascom I mit der <b>Z80 CPU</b> vorbelastet war, entschied ich mich für den TRS-80. Mittlerweile war ich mit der Maschinen- Programmierung des Z80 so vertraut &#8211; alle 920 OP-Codes kannte ich auswendig -, dass mir kaum eine andere Wahl blieb.</p>
<p>Der TRS-80 bot mir in meiner Leidenschaft zum Amateurfunk neue Möglichkeiten. Eine meiner beliebtesten Betriebsarten war <b><a href="http://de.wikipedia.org/wiki/RTTY">RTTY</a></b> (Radio Teletype), für die Nicht- Eingeweihten: Funkfernschreiben (<b><a href="http://de.wikipedia.org/wiki/Telex">Telex</a></b>) für den Heimgebrauch. Auf einer Telex-Maschine empfing man Rundschreiben oder man unterhielt sich per Tastatur mit einem Partner, den heutigen <b><a href="http://de.wikipedia.org/wiki/Chat">Chats</a></b> vergleichbar, nur mit wesentlich mehr Aufwand und nur für den kleinen Kreis der <a href="http://de.wikipedia.org/wiki/Amateurfunk">Amateurfunker</a>. Da die Telex-Maschinen doch sehr klobig und unförmig waren, es handelte sich hier um ausgemusterte Geräte der <b><a href="http://de.wikipedia.org/wiki/Deutsche_Bundespost">Deutschen Bundespost</a></b>, kam schnell die Idee, den RTTY Betrieb mit einem Computer zu realisieren. Erste Programme waren schnell geschrieben und man konnte den empfangenen Text auf dem Bildschirm als Klarschrift lesen. Ich selbst entwickelte ein Programm, mit dem man den empfangenen Text lesen und gleichzeitig eine Antwort schreiben konnte, die ebenfalls auf dem Bildschirm sichtbar war (<b><a href="http://de.wikipedia.org/wiki/Split-Screen">Split-Screen</a></b>) und nach dem Empfang sofort versendet werden konnte. Ein erstes und echtes <a href="http://de.wikipedia.org/wiki/Multitasking">Multitasking</a>. Als nächstes Programm folgte ein <a href="http://de.wikipedia.org/wiki/Morsetelegrafie"><b>CW</b></a><b> (<a href="http://de.wikipedia.org/wiki/Morsetelegrafie">Morse</a>)</b> Dekodierprogramm. Die Töne der Morsezeichen wurden als lesbare Klarschrift auf dem Bildschirm angezeigt und auch das Vorschreiben war wie beim RTTY Programm möglich.</p>
<p><img style="float:right;margin:10px;" alt="trs80-model-iii.gif" src="http://riwer.wordpress.com/files/2008/03/trs80-model-iii.gif" border="1">Durch die Popularität des TRS-80 wurden auch kommerzielle Programme angeboten. Als passionierter Schachspieler ist mir das <b><a href="http://en.wikipedia.org/wiki/Sargon_%28chess%29">SARGON</a></b> Schachspiel noch in Erinnerung. Als Betriebssystem hatte sich <b><a href="http://de.wikipedia.org/wiki/CP/M">CP/M</a></b> etabliert. Es kam mit wenig Speicher aus und <b><a href="http://de.wikipedia.org/wiki/Wordstar">WORDSTAR</a></b> hieß meine erste Textverarbeitung.</p>
<p>Auch die Firma Tandy war nicht untätig. Auf Grund des Erfolges Ihres ersten Computers <b>TRS-80 Model I</b> kam gut zwei Jahre später ein Nachfolger auf den Markt, der <b>TRS-80 Model III</b>. Das Model II war ein Portable Computer. War man zur Datenspeicherung beim Model I noch auf einen Kassettenrecorder angewiesen, so war das Model III ein Kompaktmodell und die Speichermedien, 51/4&#8243; Diskettenlaufwerke mit einer Kapazität von 156 KB (Singlesided) waren im Gehäuse eingebaut. Der Verkaufserfolg des Modells war nicht mehr so gewaltig, weil immer mehr Firmen auf den Zug des Personal Computers aufgesprungen waren.</p>
<div class="wlWriterSmartContent" style="display:inline;margin:0;padding:0;">Technorati-Tags: <a href="http://technorati.com/tags/Personal%20Computer" rel="tag">Personal Computer</a>,<a href="http://technorati.com/tags/PET%202001" rel="tag">PET 2001</a>,<a href="http://technorati.com/tags/Commodore" rel="tag">Commodore</a>,<a href="http://technorati.com/tags/TRS-80" rel="tag">TRS-80</a>,<a href="http://technorati.com/tags/Tandy" rel="tag">Tandy</a>,<a href="http://technorati.com/tags/Apple%20II" rel="tag">Apple II</a>,<a href="http://technorati.com/tags/6502" rel="tag">6502</a>,<a href="http://technorati.com/tags/Z80" rel="tag">Z80</a>,<a href="http://technorati.com/tags/Zilog" rel="tag">Zilog</a>,<a href="http://technorati.com/tags/RTTY" rel="tag">RTTY</a>,<a href="http://technorati.com/tags/Amateurfunk" rel="tag">Amateurfunk</a>,<a href="http://technorati.com/tags/CW" rel="tag">CW</a>,<a href="http://technorati.com/tags/TRS-80%20Model%20I" rel="tag">TRS-80 Model I</a>,<a href="http://technorati.com/tags/TRS-80%20Model%20III" rel="tag">TRS-80 Model III</a></div>
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<title><![CDATA[Sinclair ZX80, el primer gran éxito - Historia de los Spectrum]]></title>
<link>http://imsai8080.wordpress.com/2008/03/04/sinclair-z80/</link>
<pubDate>Tue, 04 Mar 2008 16:03:46 +0000</pubDate>
<dc:creator>imsai8080</dc:creator>
<guid>http://imsai8080.wordpress.com/2008/03/04/sinclair-z80/</guid>
<description><![CDATA[Tras el relativo éxito del MK14 , Clive Sinclair comprobó que el campo de la microinformática era un]]></description>
<content:encoded><![CDATA[<div class='snap_preview'><p style="text-align:center;"><img class="aligncenter size-full wp-image-364" style="border:1px solid black;" title="zx801" src="http://imsai8080.wordpress.com/files/2008/03/zx801.jpg" alt="zx801" width="560" height="400" /></p>
<p style="text-align:left;">Tras el relativo éxito del MK14 , Clive Sinclair comprobó que el campo de la microinformática era un negocio en potencia. Por ello, Sinclair Research se puso manos a la obra para desarrollar un posible continuador de esta máquina. La idea principal era que todo el mundo pudiera tener uno, que fuera suficientemente barato como para convertirlo en un electrodoméstico más y que fuera de aspecto mas &#8220;amigable&#8221; para el usuario que su antecesor.</p>
<p style="text-align:left;">En 1980 el Sinclair ZX80 fue lanzado en dos versiones distintas : una como &#8220;kit de montaje&#8221; (el ordenador venía en piezas y era el usuario el que tenía que montarlo) a 99 libras y otra con el ordenador ya montado al precio de 129 libras. El éxito fue inmediato , no pudiendo satisfacer Sinclair Research la demanda de ordenadores (hubo listas de varios meses para poder adquirir un ZX80). Algunas unidades llegaron incluso a importarse a los E.E.U.U, lo que nos da una idea de la importancia de esta máquina en la historia de la microinformática.</p>
<p style="text-align:left;">El ordenador fue diseñado por Jim Westwood y utilizaba como nucleo central un procesador Z80 (usado posteriormente en la mayoría de ordenadores de 8 bits). El ordenador venía equipado con 1Kb de RAM (ampliable a 16kb) y usaba como lenguaje el Sinclair Basic. El ordenador se conectaba directamente a la TV y  permitía guardar los programas en cassette. Como curiosidad, el sistema de video de este ordenador funcionaba con una mezcla de hardware y software, por lo que el ordenador solo era capaz de generar gráficos cuando el ordenador estaba &#8220;descansando&#8221; (antes de que pulsemos una tecla, por ejemplo) , lo que hacía casi imposible generar gráficos con movimiento.</p>
<p style="text-align:left;">En cuanto a su teclado, Sinclair se decidió por instalar un modelo de membrana de una sola pieza. Como supongo sabeis, este tipo de teclados no era precisamente el mas indicado, debido entre otras cosas a su corta durabilidad y a la dificultad de escribir a con ellos. A pesar de esto, se decidió utilizar este tipo de teclado para abaratar costes y poder lanzar así el ordenador a un precio competitivo. Este tipo de teclado se convirtió en un distintivo de los primeros ordenadores de la familia Spectrum.</p>
<p style="text-align:left;">Como ya hemos dicho, el ordenador fue un éxito inmediato, vendiendo más de 50.000 unidades y situando a Inglaterra a la cabeza del mercado microinformático de principios de los 80. A pesar de todo, son pocas las unidades que quedan en perfecto estado, debido principalmente al problema del teclado que hemos comentado anteriormente y a que tenía una extraña tendencia a sobrecalentarse. Por ello, el Sinclair ZX80 es un objeto de coleccionista muy valorado, que suele situarse sobre los 150-200 euros en las pocas subastas en las que ha podido ser visto.</p>
<div id="attachment_1876" class="wp-caption aligncenter" style="width: 260px"><img class="size-full wp-image-1876" style="border:1px solid black;" title="TK80, el único clon aparecido del ZX80" src="http://imsai8080.wordpress.com/files/2008/03/tk80.jpg" alt="Tk80" width="250" height="250" /><p class="wp-caption-text">TK80, el único clon aparecido del ZX80</p></div>
<p style="text-align:left;">A pesar de que tuvo múltiples ampliaciones de memoria para hacerlo más potente, Sinclair Research tardó apenas un año en buscarle un sucesor bastante más poderoso. Pero esa es otra historia que veremos en la próxima entrega.</p>
<p style="text-align:left;">
<p style="text-align:center;"><strong><span style="color:#ff0000;">CARACTERISTICAS TECNICAS</span></strong></p>
<ul style="text-align:left;">
<li><strong>Memoria ROM: </strong>1K</li>
<li><strong>Resolución en pantalla: </strong>24&#215;32 (solo texto y monócromo)</li>
<li><strong>Sonido: </strong>Sin sonido</li>
<li><strong>Sistema de almacenamiento de información : </strong>Cassette</li>
<li><strong>Sistema de introducción de datos: </strong>Teclado de membrana de 40 teclas</li>
</ul>
<p style="text-align:left;"><span style="color:#ff0000;"><em><strong>Fuentes consultadas : <a href="http://www.nvg.ntnu.no/sinclair/"> </a></strong></em></span><a href="http://www.nvg.ntnu.no/sinclair/"><span style="color:#000000;"><em><strong>Planet Sinclair</strong></em></span></a></p>
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<title><![CDATA[Nascom 1 - Z80 Single Board Computer]]></title>
<link>http://riwer.wordpress.com/2008/02/27/nascom-1-z80-single-board-computer/</link>
<pubDate>Wed, 27 Feb 2008 22:16:44 +0000</pubDate>
<dc:creator>riwer</dc:creator>
<guid>http://riwer.wordpress.com/2008/02/27/nascom-1-z80-single-board-computer/</guid>
<description><![CDATA[Schon in meiner Kindheit habe ich mich für die elektrische Technik interessiert. Mit 12 oder 13 Jahr]]></description>
<content:encoded><![CDATA[<div class='snap_preview'><p>Schon in meiner Kindheit habe ich mich für die elektrische Technik interessiert. Mit 12 oder 13 Jahren baute ich aus 2 oder 3 defekten Radios, die ich auf dem Sperrmüll fand, einen funktionstüchtigen Empfänger zusammen. So ist es auch kein Wunder, dass die Radio- und Fernsehtechnik meine Profession wurde.<br />Mitte der 70er Jahre war der CB-Funk (Citizen-Band) groß in Mode. Ein mobiler Sprechfunk im 27 MHz Bereich mit kleiner, minimaler Leistung, das normalerweise einen Kontakt über ein paar Kilometer zu ließ. Als Technikfreak war ich natürlich interessiert, mehr Leistung aus dem mobilen Gerät herauszuholen, um die Reichweite zu erhöhen. Mit ein paar Manipulationen, einer stationären Antenne und einen Sonnenflecken-Maximum konnte ich Reichweiten und Kontakte nach Südamerika, Afrika und Südeuropa erreichen.<br />Diese Manipulationen am Gerät waren ungesetzlich und da ich nicht im rechtlosen Raum leben wollte, schloss ich mich einer Funkamateurgruppe an, machte die erforderliche Amateurfunkprüfung (mit CW &#8211; auch Klopfzeichen oder Morsen genannt) und wurde Mitglied im <a href="http://www.darc.de" target="_blank">DARC (Deutscher-Amateur-Radio-Club)</a>. Jetzt war es möglich mit den Geräten des Amateurfunks weltweite Verbindungen legal herzustellen. Zustande gekommene Kontakte bestätigte man sich mit einer QSL-Karte, auf der das Datum der Verbindung, die Uhrzeit, die Frequenz, die Modulationsart und die Empfangsbedingungen festgehalten wurden.<br /><img style="margin-top:10px;float:left;margin-bottom:10px;margin-right:10px;" height="146" src="http://riwer.wordpress.com/files/2008/02/lucas-nascom1-system-1.jpg" width="301">Mein Funkamateurclub beschäftigte sich auch mit der gerade neu aufkommenden Technik des Personal- Computers. Mein erster Computer war ein <a href="http://www.old-computers.com/museum/computer.asp?c=814" target="_blank">NASCOM 1</a>, ein Einplatinen- Computer mit Tastatur und der Anschlussmöglichkeit eines Video-Monitors.</p>
<p>Sehr interessant ist auch die technische Spezifikationen, im Verhältnis zu den heutigen Computern und das ist gerade mal 30 Jahre her. Informationen unter <a href="http://www.old-computers.com/museum/computer.asp?c=814" target="_blank">http://www.old-computers.com/museum/computer.asp?c=814</a>.</p>
<table>
<tbody>
<tr>
<td class="petitnoir2" valign="top" bgcolor="#bcf9cf"><b>NAME </b></td>
<td class="petitnoir2" width="100%" bgcolor="#bcf9cf">Nascom 1</td>
</tr>
<tr>
<td class="petitnoir2" valign="top" bgcolor="#7ad396"><b>MANUFACTURER </b></td>
<td class="petitnoir2" width="100%" bgcolor="#7ad396">Lucas</td>
</tr>
<tr>
<td class="petitnoir2" valign="top" bgcolor="#bcf9cf"><b>TYPE </b></td>
<td class="petitnoir2" width="100%" bgcolor="#bcf9cf">Home Computer</td>
</tr>
<tr>
<td class="petitnoir2" valign="top" bgcolor="#7ad396"><b>ORIGIN </b></td>
<td class="petitnoir2" width="100%" bgcolor="#7ad396">United Kingdom</td>
</tr>
<tr>
<td class="petitnoir2" valign="top" bgcolor="#bcf9cf"><b>YEAR </b></td>
<td class="petitnoir2" width="100%" bgcolor="#bcf9cf">1978</td>
</tr>
<tr>
<td class="petitnoir2" valign="top" bgcolor="#7ad396"><b>BUILT IN LANGUAGE </b></td>
<td class="petitnoir2" width="100%" bgcolor="#7ad396">Monitor</td>
</tr>
<tr>
<td class="petitnoir2" valign="top" bgcolor="#bcf9cf"><b>KEYBOARD </b></td>
<td class="petitnoir2" width="100%" bgcolor="#bcf9cf">Full stroke 47 keys</td>
</tr>
<tr>
<td class="petitnoir2" valign="top" bgcolor="#7ad396"><b>CPU </b></td>
<td class="petitnoir2" width="100%" bgcolor="#7ad396">Z80</td>
</tr>
<tr>
<td class="petitnoir2" valign="top" bgcolor="#bcf9cf"><b>SPEED </b></td>
<td class="petitnoir2" width="100%" bgcolor="#bcf9cf">1 or 2 MHz.</td>
</tr>
<tr>
<td class="petitnoir2" valign="top" bgcolor="#7ad396"><b>CO-PROCESSOR </b></td>
<td class="petitnoir2" width="100%" bgcolor="#7ad396">None</td>
</tr>
<tr>
<td class="petitnoir2" valign="top" bgcolor="#bcf9cf"><b>RAM </b></td>
<td class="petitnoir2" width="100%" bgcolor="#bcf9cf">1 KB</td>
</tr>
<tr>
<td class="petitnoir2" valign="top" bgcolor="#7ad396"><b>VRAM </b></td>
<td class="petitnoir2" width="100%" bgcolor="#7ad396">1 KB</td>
</tr>
<tr>
<td class="petitnoir2" valign="top" bgcolor="#bcf9cf"><b>ROM </b></td>
<td class="petitnoir2" width="100%" bgcolor="#bcf9cf">1 or 2 KB</td>
</tr>
<tr>
<td class="petitnoir2" valign="top" bgcolor="#7ad396"><b>TEXT MODES </b></td>
<td class="petitnoir2" width="100%" bgcolor="#7ad396">48 chars. x 16 lines</td>
</tr>
<tr>
<td class="petitnoir2" valign="top" bgcolor="#bcf9cf"><b>GRAPHIC MODES </b></td>
<td class="petitnoir2" width="100%" bgcolor="#bcf9cf">None</td>
</tr>
<tr>
<td class="petitnoir2" valign="top" bgcolor="#7ad396"><b>COLORS </b></td>
<td class="petitnoir2" width="100%" bgcolor="#7ad396">Monochrome</td>
</tr>
<tr>
<td class="petitnoir2" valign="top" bgcolor="#bcf9cf"><b>SOUND </b></td>
<td class="petitnoir2" width="100%" bgcolor="#bcf9cf">Unknown</td>
</tr>
<tr>
<td class="petitnoir2" valign="top" bgcolor="#7ad396"><b>SIZE / WEIGHT </b></td>
<td class="petitnoir2" width="100%" bgcolor="#7ad396">30.5 (L) x 19.2 (W) cm. (8 x 12 in)</td>
</tr>
<tr>
<td class="petitnoir2" valign="top" bgcolor="#bcf9cf"><b>I/O PORTS </b></td>
<td class="petitnoir2" width="100%" bgcolor="#bcf9cf">TV-UHF video interface, selectable serial port (Tape recorder or RS232 or Teletype current loop)</td>
</tr>
<tr>
<td class="petitnoir2" valign="top" bgcolor="#7ad396"><b>BUILT IN MEDIA </b></td>
<td class="petitnoir2" width="100%" bgcolor="#7ad396">Cassette tape</td>
</tr>
<tr>
<td class="petitnoir2" valign="top" bgcolor="#bcf9cf"><b>OS </b></td>
<td class="petitnoir2" width="100%" bgcolor="#bcf9cf">Monitor in ROM</td>
</tr>
<tr>
<td class="petitnoir2" valign="top" bgcolor="#7ad396"><b>POWER SUPPLY </b></td>
<td class="petitnoir2" width="100%" bgcolor="#7ad396">Separate power supply unit (sold as option)</td>
</tr>
<tr>
<td class="petitnoir2" valign="top" bgcolor="#bcf9cf"><b>PERIPHERALS </b></td>
<td class="petitnoir2" width="100%" bgcolor="#bcf9cf">Memory boards and various I/O interfaces</td>
</tr>
<tr>
<td class="petitnoir2" valign="top" bgcolor="#7ad396"><b>PRICE </b></td>
<td class="petitnoir2" width="100%" bgcolor="#7ad396">£199 in kit form</td>
</tr>
</tbody>
</table>
<p>
<div class="wlWriterSmartContent" id="scid:0767317B-992E-4b12-91E0-4F059A8CECA8:7f276fdb-3c4f-4ac0-8238-d1c89d55e161" style="display:inline;margin:0;padding:0;">Technorati-Tags: <a href="http://technorati.com/tags/CB-Funk" rel="tag">CB-Funk</a>,<a href="http://technorati.com/tags/DARC" rel="tag">DARC</a>,<a href="http://technorati.com/tags/Nascom" rel="tag">Nascom</a>,<a href="http://technorati.com/tags/Z80" rel="tag">Z80</a></div></p>
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<title><![CDATA[Zilog z80]]></title>
<link>http://z80rockerz.wordpress.com/2008/02/21/zilog-z80/</link>
<pubDate>Thu, 21 Feb 2008 06:26:34 +0000</pubDate>
<dc:creator>z80rockerz</dc:creator>
<guid>http://z80rockerz.wordpress.com/2008/02/21/zilog-z80/</guid>
<description><![CDATA[The Zilog Z80 is an 8-bit microprocessor designed and sold by Zilog from July 1976embedded computer ]]></description>
<content:encoded><![CDATA[<div class='snap_preview'><div style="text-align:center;"><img src="http://i101.photobucket.com/albums/m75/beta3011/Zilog_Z80.jpg" alt="the first z80 microprocessor (1976)" height="214" width="389" /></div>
<p align="justify"><font color="#ffffff">The <b>Zilog Z80</b> is an <a href="http://en.wikipedia.org/wiki/8-bit" title="8-bit">8-bit</a> <a href="http://en.wikipedia.org/wiki/Microprocessor" title="Microprocessor">microprocessor</a> designed and sold by <a href="http://en.wikipedia.org/wiki/Zilog" title="Zilog">Zilog</a> from July <a href="http://en.wikipedia.org/wiki/1976" title="1976">1976</a><a href="http://en.wikipedia.org/wiki/Embedded_computer" class="mw-redirect" title="Embedded computer">embedded computer</a> designs as well as for military purposes. The Z80 and its derivatives and clones make up one of the most commonly used <a href="http://en.wikipedia.org/wiki/Central_processing_unit" title="Central processing unit">CPU</a> families of all time, and, along with the <a href="http://en.wikipedia.org/wiki/MOS_Technology" title="MOS Technology">MOS Technology</a> <a href="http://en.wikipedia.org/wiki/MOS_Technology_6502" title="MOS Technology 6502">6502</a></font></p>
<div align="justify">
<address><font color="#ffffff"> onwards. It was widely used both in desktop and  family, dominated the 8-bit microcomputer market from the late 1970s to the mid-1980s.</font></address>
</div>
<p align="justify"><font color="#ffffff">Although Zilog made early attempts with advanced <a href="http://en.wikipedia.org/wiki/Mini-computer" class="mw-redirect" title="Mini-computer">mini-computer</a> like versions of the Z80-architecture (<a href="http://en.wikipedia.org/wiki/Zilog_Z800" title="Zilog Z800">Z800</a> and <a href="http://en.wikipedia.org/wiki/Z280" class="mw-redirect" title="Z280">Z280</a>), these chips never caught on. The company was also trying hard in the <a href="http://en.wikipedia.org/wiki/Workstation" title="Workstation">workstation</a> market with its <a href="http://en.wikipedia.org/wiki/Z8000" class="mw-redirect" title="Z8000">Z8000</a> and <a href="http://en.wikipedia.org/wiki/32-bit" title="32-bit">32-bit</a> <a href="http://en.wikipedia.org/wiki/Z80000" class="mw-redirect" title="Z80000">Z80000</a> (both unrelated to Z80). In recent decades Zilog has refocused on the ever-growing market for <a href="http://en.wikipedia.org/wiki/Embedded_systems" class="mw-redirect" title="Embedded systems">embedded systems</a> (for which the original Z80 and the <a href="http://en.wikipedia.org/wiki/Z180" class="mw-redirect" title="Z180">Z180</a> were designed) and the most recent Z80-compatible <a href="http://en.wikipedia.org/wiki/Microcontroller" title="Microcontroller">microcontroller</a> family, the fully pipelined <a href="http://en.wikipedia.org/wiki/24-bit" title="24-bit">24-bit</a> <a href="http://en.wikipedia.org/wiki/Zilog_eZ80" title="Zilog eZ80">eZ80</a> with a <a href="http://en.wikipedia.org/wiki/Linear" title="Linear">linear</a> 16 <a href="http://en.wikipedia.org/wiki/MB" title="MB">MB</a><a href="http://en.wikipedia.org/wiki/Z180" class="mw-redirect" title="Z180">Z180</a> and Z80 products. address range, has been successfully introduced alongside the simpler </font></p>
<p align="justify"><font color="#ffffff">Zilog licensed the Z80 <a href="http://en.wikipedia.org/wiki/Semiconductor_intellectual_property_core" title="Semiconductor intellectual property core">core</a> to any company wishing to make the device <a href="http://en.wikipedia.org/wiki/Royalty-free" title="Royalty-free">royalty free</a>, though many East European and Russian manufacturers made unlicensed copies. This enabled a small company&#8217;s product to gain acceptance in the world market since <a href="http://en.wikipedia.org/wiki/Second_source" title="Second source">second sources</a> from far larger companies such as <a href="http://en.wikipedia.org/wiki/Toshiba" title="Toshiba">Toshiba</a> started to manufacture the device. Consequently Zilog has made less than 50% of the Z80s since its conception.</font></p>
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<title><![CDATA[ZX Spectrum &amp; ZX-Ревю]]></title>
<link>http://dasannikov.wordpress.com/2008/02/02/zx-spectrum/</link>
<pubDate>Sat, 02 Feb 2008 02:16:11 +0000</pubDate>
<dc:creator>DASannikov</dc:creator>
<guid>http://dasannikov.wordpress.com/2008/02/02/zx-spectrum/</guid>
<description><![CDATA[Во времена когда интернета толи небыло толи был, но в любом случаи я даже и не подозревал о его суще]]></description>
<content:encoded><![CDATA[<div class='snap_preview'><p>Во времена когда интернета толи небыло толи был, но в любом случаи я даже и не подозревал о его существовании как и миллионы других людей, гдето в районе 92-93-х годов, я сидел вечерами (да и днями тоже) перед телевизором на котором в разрешении 256 на 190 с копейками точек были сосредоточены все мои тогдашние интересы. Это был компьютер <a class="answerlink" href="http://ru.wikipedia.org/wiki/ZX_Spectrum">ZX Spectrum</a> 48k. Тот самый что работал в связке телевизор + кассетный магнитофон. Но рассказ не о нем, а о журнале “ZX-Ревю” который издавался с 1991-го года по, как я сейчас узнал и был, мягко сказать, удивлен, 1997 год. Только представте 97-й год. Времена полной победы Windows 95, пол шага к Windows 98 исреди всего этого журнал о ZX Spectrum!</p>
<p>Журнал был действительно “культовым”. Во времена своего рассвета (92-93) ежемесячный номер включал порядка 80 страниц в формате A4 мелким шрифтом. Это был единственный источник информации  о ZX Spectrum доступный всем, в любом городе вплоть до самого малого поселка в котором я и жил. Больше информации получить было неоткуда. Ценность каждого номера, для меня тогда, была просто запредельной…</p>
<p>Журнал был очень не “юзер-фредли” скажем так. Черно белый, топорная полиграфия, полное отсутствие верстки и… треть текста &#8211; листинги на ассамблере.! Последнее &#8211; бесценно. Можно вчитыватся в эти коды до головокружения и получать ни с чем ни сравнимое удовольствие! ( для 12-летнего так точно <img src='http://s.wordpress.com/wp-includes/images/smilies/icon_smile.gif' alt=':)' class='wp-smiley' /> . Вторая треть &#8211; Игры. Описание игр, написание игр, хитрости, обзоры, программирование.. все о играх что только может быть. От процесса создания “лоадинга”(с счетчиком процентов &#8211; для тех кто в теме) до “списка быстрых клавиш” и “стратегий победы”…</p>
<p>Одним словом, вся самая соль геймдева. Его “нутро”. Вся его “идеология”, та что не “материальная” но заставляет разработчика снова и снова делать и делать и испытывать удовольствие от каждой точки на экране.. если вы не читали ZX-Ревю, вы не поймете о чем я ! <img src='http://s.wordpress.com/wp-includes/images/smilies/icon_smile.gif' alt=':)' class='wp-smiley' /> </p>
<p>И вот, случайно, я нашел ЭТО!. 3000 страниц текста!. Весь архив того самого <a href="http://trd.speccy.cz/book.htm">ZX-Ревю. Тут!</a>. Не скажу что каждый настоящий гейм-разработчик должен это прочитать, но я скачал и я очень рад. Это та самая сказка которую я читал в детстве на ночь и думал что уже потерял… <img src='http://s.wordpress.com/wp-includes/images/smilies/icon_smile.gif' alt=':)' class='wp-smiley' /> </p>
<p>п.с. А еще ZX Spectrum это единственный на моей памяти компьютер у которого был белый фон и черные буквы по умолчанию, на уровне системы. Помоему это о многом говорит <img src='http://s.wordpress.com/wp-includes/images/smilies/icon_smile.gif' alt=':)' class='wp-smiley' /> </p>
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<title><![CDATA[Gerando um assembler para Z80 (Sega Master System ou Sega Megadrive)]]></title>
<link>http://aventuranolinux.wordpress.com/2008/01/16/gerando-um-assembler-para-z80-sega-master-system-ou-sega-megadrive/</link>
<pubDate>Wed, 16 Jan 2008 04:15:05 +0000</pubDate>
<dc:creator>aventuranolinux</dc:creator>
<guid>http://aventuranolinux.wordpress.com/2008/01/16/gerando-um-assembler-para-z80-sega-master-system-ou-sega-megadrive/</guid>
<description><![CDATA[Seguindo as instruções de um post meu mesmo &#8220;antigo&#8221;, fui capaz de gerar um assembler e ]]></description>
<content:encoded><![CDATA[<div class='snap_preview'><p>Seguindo as instruções de <a HREF="http://aventuranolinux.wordpress.com/2007/11/04/gerando-um-assembler-para-sega-mega-drive-genesis/">um post meu mesmo &#8220;antigo&#8221;</a>, fui capaz de gerar um assembler e linker para o processador Z80, que o Megadrive usa como coprocessador de som e o Master System como principal (e única) CPU.</p>
<p>A única diferença é que, infelizmente, não há suporte para arquivos-objeto ELF ainda (binutils versão 2.18), só COFF. E, esquisitamente, só permite rodar o <em>configure</em>, se o alvo (<em>&#8211;target</em>) for <strong>z80-unknown-coff</strong>. O resto seguiu sem maiores problemas.</p>
<p>Meus agradecimentos à <a TITLE="WikiTI" HREF="http://aventuranolinux.wordpress.com/wp-admin/WikiTI">WikiTI</a> por me dar essa informação sem saber =]</p>
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<title><![CDATA[OLPC XO: education and the Sinclair heritage]]></title>
<link>http://dmlenton.wordpress.com/2007/12/13/olpc-xo-education-and-the-sinclair-heritage/</link>
<pubDate>Thu, 13 Dec 2007 07:09:55 +0000</pubDate>
<dc:creator>dmlenton</dc:creator>
<guid>http://dmlenton.wordpress.com/2007/12/13/olpc-xo-education-and-the-sinclair-heritage/</guid>
<description><![CDATA[The One Laptop Per Child (OLPC) XO computer reminds me of some of Sir Clive Sinclair&#8217;s compute]]></description>
<content:encoded><![CDATA[<div class='snap_preview'><p><img src="http://dmlenton.wordpress.com/files/2007/12/xo.jpeg" alt="OLPC XO" /> <img src="http://dmlenton.wordpress.com/files/2007/12/spectrum.jpeg" alt="ZX Spectrum" /></p>
<p>The <a href="http://laptop.org/en/index.shtml">One Laptop Per Child (OLPC) XO</a> computer reminds me of some of Sir Clive Sinclair&#8217;s computers. Not, as you might think, because of the XO&#8217;s rubber-membrane keyboard, which both of Sir Clive&#8217;s most popular computer, the <a href="http://en.wikipedia.org/wiki/ZX_Spectrum">ZX Spectrum</a>, and his only portable, the <a href="http://en.wikipedia.org/wiki/Cambridge_Z88">Z88</a>, shared. Rather, it is that one of core aims of the OLPC XO project is to encourage children to learn  about the computer they are using: &#8220;Children program the machine, not the other way around.&#8221; [see <a href="http://laptop.org/en/laptop/">http://laptop.org/en/laptop/</a>]  In the same way, Sinclair always intended his computers to be used as educational tools. Indeed, his earliest mass market machines, the <a href="http://en.wikipedia.org/wiki/Sinclair_ZX80">ZX80</a> and <a href="http://en.wikipedia.org/wiki/Sinclair_ZX81">ZX81</a> were both available in kit form, requiring the user to really get to grip with how things worked. While it&#8217;s probably true that these kits only appealed to a limited hobbyist market, they did emphasis the accessibility of the machines.  That accessibility remained important to Sinclair &#8211; even the hugely popular ZX Spectrum and later the <a href="http://en.wikipedia.org/wiki/Sinclair_QL">Sinclair QL</a> came with hefty manuals detailing everything about each computer as well as comprehensive programming guides. These were machines designed to teach as well as be used to perform specific tasks.</p>
<p>Although many people didn&#8217;t use these Sinclair computers as educational tools, preferring instead just to play games or run business applications written by others, many did go on to learn and write software for these machines; and some went on to become very successful, setting up and running their own software companies. Others built various pieces of hardware to attach to and extend these machines. For example, I remember one contemporary at my school building an interface that connected his Spectrum to a Scalextric track so that track times could be recorded. Many other interfaces were designed and sold commercially.</p>
<p>Of course, computers have come a long way since Sinclair&#8217;s heyday, and as computers have moved closer to being appliances they have brought with them significant benefits &#8211; not least the fact that you don&#8217;t need to be some kind of technical genius just to get the things to work. Yet as they have become easier to use, they have also become significantly more complicated to understand, in particular in terms of how they work.</p>
<p>We certainly can&#8217;t go back to the days of Z80 processor, where it was possible for one person to understand nearly everything about the computer he or she was programming, and on the whole that&#8217;s probably a very good thing. Yet I can&#8217;t help but feel that children are missing out by not having their own Sinclair computer to explore. That&#8217;s why I hope the OLPC project is a success. To date, OLPC have been focusing on selling the XO computer to the developing world, but I think their goal of providing &#8220;children around the world with new opportunities to explore, experiment and express themselves&#8221;, applies equally to the developed world. I hope it becomes more widely available soon, and that the current <a href="http://www.laptopgiving.org/en/index.php">Give One Get One</a> initiative in the US and Canada, where individuals can effectively pay for two machines and donate one of them to a child in a developing nation, is the first of many.</p>
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<title><![CDATA[jsMSX]]></title>
<link>http://xbelanch.wordpress.com/2006/09/23/jsmsx/</link>
<pubDate>Sat, 23 Sep 2006 22:41:14 +0000</pubDate>
<dc:creator>Javier Belanche Alonso</dc:creator>
<guid>http://xbelanch.wordpress.com/2006/09/23/jsmsx/</guid>
<description><![CDATA[Si os atrevéis a cruzar la gimnasia con la magnesia, os encontraréis el proyecto jsMSX, es decir, un]]></description>
<content:encoded><![CDATA[<div class='snap_preview'><p>Si os atrevéis a cruzar la gimnasia con la magnesia, os encontraréis el proyecto <a href="http://jsmsx.sourceforge.net/">jsMSX</a>, es decir, un emulador del MSX en javascript! Interesante proyecto y, no menos extraño, del que disponemos -afortunadamente- del código, especialmente el z80.js, donde se resuelven los opcodes del micro. De interés para aquellos que estéis jugando a la creación de retro-emuladores.</p>
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<title><![CDATA[Mini Système Z80]]></title>
<link>http://xbelanch.wordpress.com/2006/09/19/mini-systeme-z80/</link>
<pubDate>Tue, 19 Sep 2006 21:56:52 +0000</pubDate>
<dc:creator>Javier Belanche Alonso</dc:creator>
<guid>http://xbelanch.wordpress.com/2006/09/19/mini-systeme-z80/</guid>
<description><![CDATA[Le système proposé ici est un système expérimental tournant autour d&#8217;un Z80. Ce système est se]]></description>
<content:encoded><![CDATA[<div class='snap_preview'><p><em>Le système proposé ici est      un système expérimental tournant autour d&#8217;un Z80. Ce système      est semi autonome. Pour communiquer avec le système il faut passer par un terminal (un vrai      ou une émulation sur une plate forme quelconque, comme l&#8217;Hyper Terminal de Windows&#8230;).</em></p>
<p><a href="http://jeanfrancoisdelnero.free.fr/z80sys/index.html">Link</a></p>
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