Video recording in digital form. In order to edit video in the computer or to embed video clips into multimedia documents, a video source must originate from a digital camera or be converted to digital. Frames from analog video cameras and VCRs are converted into digital frames (bitmaps) using frame grabbers or similar devices attached to a computer.
Uncompressed digital video signals require huge amounts of storage, and high-ratio real time compression schemes, such as MPEG, are essential for handling digital video in today's computers. See D1, MPEG, DVD, digital nonlinear editing and DTV.
Uncompressed digital video signals require huge amounts of storage, and high-ratio real time compression schemes, such as MPEG, are essential for handling digital video in today's computers. See D1, MPEG, DVD, digital nonlinear editing and DTV.
 | Reproduced with permission from Computer Desktop Encyclopedia. Copyright (c) 1981-2008 The Computer Language Company Inc. All rights reserved. |
Additional Resources
- Banking On The Internet Breaking
- So, on the day the Olympics open, the head of Tellabs – which helps telecommunications carriers deliver high-quality voice, video and data services around the world -- is talking about a looming bandwidth crisis for the Internet, in today's Chicago Sun-Times. The main cause for the concern:...
- Blog posts 2008-08-08
- DVB-H and government overreach
- Germany is facing difficulties finding a workable business model for the mandatory DVB-H mobile video broadcasting standard. Perhaps the problem is that governments are trying to impose technology standards ahead of time -- a strategy that, from an economics standpoint, is questionable. by John Carroll
- Blog posts 2008-08-08
- CBS Video: Cyber Threat In China?
- US intelligence officials warn that American visitors to the Olympics in China face a serious risk of having sensitive information stolen by cyber thieves. Bob Orr reports. by Larry Dignan
- Blog posts 2008-08-08
- Facebook and MySpace: Walking the security-social networking line
- Security--actually insecurity--is a very social thing. Get a cute malware infested email and forward it along to your contact list. See a site that's interesting--but is really just a phishing expedition--and you get hit with a virus/worm/rootkit. Social engineering makes the security world go around. So what do you do...
- Blog posts 2008-08-08
- MacBook Pro graphics chips failing prematurely
- It appears that the current crop of MacBook Pros seem to be suffering from a premature failure of their Nvidia graphics processors. According to a piece on The Inquirer "All Nvidia G84 and G86s are bad" and MacBooks Pro's with either the Nvidia 8600GT GPUs are prone to failure: ...
- Blog posts 2008-08-08
- Office Labs 'target' busy multitaskers
- 'Targets' - shameless pun. I apologise. Microsoft, admittedly, have done some good things over the last few weeks, and again they've rolled something out which could really benefit students. I've personally never seen anything like this; probably my naive nature or lack of research, no doubt they'll be one out...
- Blog posts 2008-08-08
- Watch the Olympics! Right after this series of hurdles
- The opening Olympic ceremony in Beijing is underway just don't expect to watch them live. That'll happen later on Friday so the Web doesn't cannibalize TV for NBC. It's one of many hurdles you must clear to watch a little Olympic video. But I can live with...
- Blog posts 2008-08-08
- News to know: Google; Web Olympics; Patch Tuesday; iPhone
- Notable headlines: Tom Steinert-Threlkeld: Will the Olympics melt the Internet? Time Warner's Olympic boost, courtesy NBC More worries for Beijing visitors Phil Wainewright: Hello, Google, is anyone in there? Larry Dignan: Google: Our AOL investment is ‘impaired' ...
- Blog posts 2008-08-08
- Apple prices are just peachy
- I'm always looking for a bargain. I'm in charge of buying technology for a small, rural school district; I don't spend much time deciding between SLI video options for my students. That being said, I still just bought a whole slew of Macs for the K-8...
- Blog posts 2008-08-07
- Rejaw launches, but seems a little Twittery
- If Twitter is a busted old '66 El Camino, then Rejaw is a Toyota Prius. The new kid on the block claims to be better, but it's more fun to ride around with your friends in a classic car with the windows down and the breaks squeaking. ...
- Blog posts 2008-08-07
- The government has an "iPatriot Act" ready for Internet control
- My video of Lawrence Lessig, a law professor at Stanford University talking about an "iPatriot Act" has received a lot of views thanks to a post on the top blog site Boing Boing. Lawrence Lessig on the coming "i-Patriot Act" - Boing Boing I've taken out an...
- Blog posts 2008-08-07
- Top US online video sites in May 2008 by videos per user
- Property Audience, 000 Videos per Viewer Total Internet 141,657 85.3 Google Sites 83,828 50.2 Fox Interactive Media 60,760 12.8 Yahoo! Sites 40,197 8.6 Microsoft Sites 29,471 8.3 Time Warner - Excl. AOL 24,612 5.9 AOL LLC...
- Blog posts 2008-08-07
- Top US online video sites in May 2008 by videos per user
- Property Audience, 000 Videos per Viewer Total Internet 141,657 85.3 Google Sites 83,828 50.2 Fox Interactive Media 60,760 12.8 Yahoo! Sites 40,197 8.6 Microsoft Sites 29,471 8.3 Time Warner - Excl. AOL 24,612 5.9 AOL LLC...
- Blog posts 2008-08-07
- Worldwide spending on Internet ads will total $65.2 bln in 2008
- Worldwide spending on Internet advertising will total $65.2 bln in 2008, which represents nearly 10% of all ad spending across all media. With IDC’s Digital Marketplace Model and Forecast projecting 15-20% annual growth throughout the forecast period, this share will reach 13.6% by 2011 as Internet ad spending grows to...
- Blog posts 2008-08-07
- Worldwide spending on Internet ads will total $65.2 bln in 2008
- Worldwide spending on Internet advertising will total $65.2 bln in 2008, which represents nearly 10% of all ad spending across all media. With IDC’s Digital Marketplace Model and Forecast projecting 15-20% annual growth throughout the forecast period, this share will reach 13.6% by 2011 as Internet ad spending grows to...
- Blog posts 2008-08-07
- Video: IBM: Linux in 2018?
- At the LinuxWorld conference in San Francisco, IBM executive Bob Suter talks about what a desktop will mean in the future, saying it will focus more on mobile devices like iPhones and collaborations across platforms. He then calls for better graphics designers in the open-source world to make them easier...
- Blog posts 2008-08-07
- Will the Olympics melt the Internet?
- Okay, sky-is-falling fans and network neutrality proponents: We're about to find out whether the Internet can – or will – break down under the strain of mass consumption of streaming video. At least that's the opinion of Brick Eksten, the president and CEO...
- Blog posts 2008-08-07
- Time Warner's Olympic boost, courtesy NBC
- If you're Jeff Bewkes, the chief executive of Time Warner, you might get pleasantly surprised over the next couple weeks at the number of your Time Warner Cable subscribers who use their Internet connections to access streams of video of the 25 sports being sent live via www.nbcolympics.com. ...
- Blog posts 2008-08-07
- More worries for Beijing visitors
- If you are headed to or already at the Olympic Games and you weren't worried by my Tech Tips for Beijing Visitors at the end of last month, maybe you should be now, In telling the Wall Street Journal's readers "Don't Forget About China's Dissidents," Ellen Bork...
- Blog posts 2008-08-07
- CIOs: We love video conferencing and online training; Enterprise 2.0 on the ropes
- Chief information officers have the hots for online training, video conferencing and collaboration software such as Microsoft's SharePoint. Just don't ask these execs to blog, use a wiki or enter a virtual world. That's the recap from a survey of 1,400 CIOs by staffing firm Robert Half...
- Blog posts 2008-08-07
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