Digital video is a type of video recording system that works by using a digital rather than an analog video signal. Digital television, including higher quality HDTV started to spread in the year 2000. Digital video is also used in modern mobile phones, video conferencing systems, internet distribution of media, including streaming video and peer-to-peer movie distribution.
Many types of video compression exist for serving digital video over the internet, and onto DVDs. Probably the most widely used formats for delivering video over the internet are MPEG4 and Windows Media, while MPEG2 is used almost exclusively for DVDs, providing an exceptional image in minimal size but resulting in a high level of CPU consumption to decompress.
By Peter Percosan, Texas Instruments Over the last 25 years, digital electronic technology has transformed one segment of society after another. It started with PCs, continued with the advent of wireless communication devices and the Internet and recently has taken hold with Internet connected consumer electronics and media playing devices. Along the way and behind the scenes the network...