WHAT IS CAPCHA?
CAPTCHA is a program that protect and prevent the websites from bots by generating and grading tests that humans can pass but current machines(computer programs) cannot. 1,167 more words
The technique introduced here could enable smooth luminance of the LEDs from “real extinction” or “pseudo-extinction.” More specifically, the LEDs can be dimmed to extinction without any significant gaps in the brightness levels. 189 more words