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PNGs have an alpha channel, so you can have irregularly shaped images for things like icons.
JPG is a lossy format. This is good for webpages to use, because smaller, compressed files save load times. 163 more words
What is Big Data? If someone asks you this question, you wouldn’t be required to formulate a long-nerdy-complex definitions instead you could just say it is any technique which helps to manage huge chunks of data which could not be easily processed using conventional data management mechanisms. 275 more words