(Permanent Virtual Circuit) A point-to-point connection that is established ahead of time. A group of PVCs defined at the time of subscription to a particular service is known as a "virtual private network" (VPN). Contrast with SVC. See VPN.
 | Reproduced with permission from Computer Desktop Encyclopedia. Copyright (c) 1981-2009 The Computer Language Company Inc. All rights reserved. |
Additional Resources
- New report explores the safe materials aspect of green technology
- Lots of the green technology coverage out there right now is focused on the carbon emissions impact of various gadgets, equipment and data centers. But a new report illustrates the advances that seven electronics companies have made when it comes to eliminating hazardous materials from their products. ...
- Blog posts 2009-10-07
- A plastic is a plastic is a plastic...NOT!
- The folks at EWG have put together some information and research data to help we nearly powerless consumers at least try to avoid some of the worst chemicals we bring into our lives and our homes. You can find the EWG plastic guide here. Some simple tips: try...
- Blog posts 2009-09-06
- How to get high-end "Steadicam" shots from your low-end camcorder, on the cheap
- Remember the scene from The Shining where Jack chases Danny through the hedge maze? Or Rocky Balboa's famous run up the steps of the Philadelphia Museum of Art? Those iconic tracking shots are courtesy of the Steadicam, a stabilizing mount for movie cameras invented in 1976....
- Blog posts 2009-07-17
- Tsk, tsk: Greenpeace scolds HP, Lenovo and Dell on latest green electronics listing
- Tsk, tsk: Greenpeace scolds HP, Lenovo and Dell on latest green electronics listingGreenpeace is irrelevantDoes it really matter what they say or do?Greenpeace are scumFor example: "Nintendo works to eliminate harmful substances from its products right from the initial stages of material selection, but does not refer to the Precautionary...
- Discussion threads 2009-07-10
- Tsk, tsk: Greenpeace scolds HP, Lenovo and Dell on latest green electronics listing
- Yes, Hewlett-Packard, Dell and Lenovo have been doing plenty in the area of power management. But all three just got dinged on the latest of Greenpeace's ongoing Guide to Greener Electronics. The link that I've just given you provides very details specifics on why each company has received the company...
- Blog posts 2009-07-10
- CCG Profiles 9.1 (Windows)
- Software solution for window and door manufacturers. Design, drawing, calculation and optimization of constructions from aluminum, PVC and timber profiles. Fully customizable databases, prices, languages. Version 9.1 features updated installation package.
- Software downloads 2009-07-03
- Enterprise ripe for green disruption, Samsung VP says
- When it comes to adopting green technology, the enterprise is ready for a "disruptive" approach to innovation, said Jim Elliott, vice president of memory marketing at Samsung Semiconductor. In a presentation yesterday at the Time Warner Center in New York City, Elliott explained that the industry is...
- Blog posts 2009-06-18
- 3D Piping Symbols Library for AutoCAD 1.1 (Windows)
- This library can be easily loaded into AutoCAD's menu bar for quick access. There's no need to browse through folders every time you need to insert a symbol. Its user-friendly interface allows you to simply point and click to choose from a wide range of 3D solid model piping symbols....
- Software downloads 2009-06-01
- Would you go the extra mile to get rid of an old computer responsibly?
- Would you go the extra mile to get rid of an old computer responsibly?The dump works good for me....Throw it away and be done, I have heard enough about how the earth is ending and if we do not stop eating meat, driving, using A/C we are all doomed.I can't...
- Discussion threads 2009-05-29
- Do IT pros demand Apple's new Xserve?
- I posted this morning that Apple has debuted its new Xserve with Intel Nehalem processors, but I didn't give the full rundown of the product. So here's the who, what, why and how. Apple today announced an updated Xserve that it says "delivers...
- Blog posts 2009-04-07
- HP Report: Good Performance on Sustainability (but dinged by Greenpeace)
- HP released their 2008 sustainability report today and again, unsurprisingly, it's a deeply impressive effort. HP has pushed the boat out with substantive improvement in the quality of the disclosure as well the accessibility of the report which has been much enhanced with the use of interactive dashboards. I'm finding...
- Blog posts 2009-04-06
- Dell supersizes its LED monitors
- More extraneous product news: Dell is prepping 22-inch and 24-inch widescreen flat-panel monitors that rely on LED technology and recycled materials. They will use roughly half the energy of comparable technology, responding dynamically to ambient lighting conditions in order to adjust screen brightness. Here are some key...
- Blog posts 2009-01-14
- Mac mini revision rumored for Macworld Expo
- An Apple corporate employee reportedly contacted Wired.com to tell them that Apple will release an upgraded Mac mini, at January's Macworld Expo in San Francisco which starts 5 January 2009. The Mac mini is Apple's oldest piece of hardware and was last updated in 07 August 2007...
- Blog posts 2008-12-16
- MacBooks: World's greenest family of notebooks
- Apple's latest Get A Mac television commercial proclaims the new MacBooks to be the "world's greenest family of notebooks." The ad touts the MacBook as completely recyclable and says that it uses a quarter of the amount of power of a single light bulb and has no mercury. ...
- Blog posts 2008-11-25
- Finally, an Apple notebook built with green credentials in mind
- I’ve been writing stories about Apple products for longer than I care to enumerate here, and have always been agog over the sheer creativity that’s associated with its product design. Too expensive, yes. Too heavy, absolutely. Self-indulgent, probably. But my second-hand, three-year-old PowerBook G4 notebook still draws comments (not all...
- Blog posts 2008-10-18
- Apple gadget lust for me, but anything for Ed Tech?
- I have to get a new MacBook Pro. I need to find a way to convince my wife that one of my kids needs my MacBook and I must therefore have one of the latest MBPs introduced today. Because seriously, folks, if you haven't checked out coverage of...
- Blog posts 2008-10-14
- Apple's Let's Rock event wrap-up
- The following is a wrap-up of Apple's Lets Rock media event today in San Francicso which began at 10:00 am PT. iTunes Stats: 8.5 million songs 125,000 podcasts 30,000 TV shows 2600 movies 3,000 apps for iPhone and touch ...
- Blog posts 2008-09-09
- Wirelessly networking cows
- U.S. researchers have developed a Walkman-like headset for cows. This device enables them to 'whisper wireless commands to cows to control their movements across a landscape -- and even remotely gather them into a corral.' In fact, it could help farmers to maintain cows behind virtual fences. According to the...
- Blog posts 2008-06-08
- Apple moving up in green rankings
- Apple moving up in green rankingsEnvironmental FascistsJust in my 30 years on the planet...Gum never came in blister packs that people throw out.Pop came in glass bottles.You never saw crazy packaging like those for memory cards that have like 50 x more plastic than the card that is housed inside.Groceries...
- Discussion threads 2008-03-31
- Apple moving up in green rankings
- When Steve Jobs announced the MacBook Air at Macworld Expo in January 2008, he promoted its environmental benefits including being completely mercury and arsenic free, exceeding European Standards. In May 2007 Apple also promised to completely eliminate the use of Polyvinyl Chloride PVC and Brominated Fire Retardants...
- Blog posts 2008-03-30
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