A rechargeable battery technology that dates back to the mid 1800s. Liquid-filled lead acid batteries are used in vehicles, but gel-filled units, which came out in the early 1970s, provide the most economical battery for UPS systems and electric carts (scooters, wheelchairs, etc.). Lead acid was also used in some early portable computers. Providing the least amount of charge per pound of the rechargeable batteries, the lead acid technology uses lead plates and an acid electrolyte. See batteries.
 | Reproduced with permission from Computer Desktop Encyclopedia. Copyright (c) 1981-2008 The Computer Language Company Inc. All rights reserved. |
Additional Resources
- Say it ain't so AVG, say it ain't so: AVG LinkScanner = Badware?
- The Register covered a very interesting story about AVG. Apparently AVG is spamming the Internet with traffic that looks to be coming from Internet Explorer. AVG software pre-crawls search results to try to protect users, but uses a user agent that makes the software appear to be Internet Explorer. This pre-crawling is flooding websites with...
- Blog posts 2008-07-03
- YouTube vs. Viacom: Google's IP wins; Users lose
- YouTube vs. Viacom: Google's IP wins; Users loseCompetition?Does Viacom think that a 10 minute pixellated clip of a show or movie is really competition for seeing the entire show/movie on a TV or big screen? This is getting ridiculous. If anything, having these clips on YouTube is free...
- Discussion threads 2008-07-03
- Smiley's Challenge (exe)
- Smiley's Challenge is a fun game for elementary aged students which also requires a bit of thought and planning. Can you find Smiley before the Badees get you? Can you click quickly enough to capture Smiley or lead him to home through a brick wall maze? This program includes three...
- Software downloads 2008-07-03
- AMD Phenom gets (a little) faster
- AMD Phenom gets a little fasterAMD strikes back!Hi, soon as the 45nm part gets out with DDR3 memory support look out, we will see AMD lead again!!!Even right now the Phenom is the best gamer cpu with any UT3 engine based games!!!
- Discussion threads 2008-07-02
- Firefox 2 dirty dozen: Critical vulnerabilities patched
- Mozilla has shipped a high-priority update for Firefox 2, warning that there are at least five serious vulnerabilities that could lead to code execution attacks. With Firefox 2.0.0.15, Mozilla fixes at least 12 documented vulnerabilities -- five rated critical -- that could put users at risk...
- Blog posts 2008-07-02
- Anti-malware blocker, cross-site scripting protections coming in IE 8
- When Microsoft's Internet Explorer 8 hits the Beta 2 milestone in August, the browser makeover will feature a full-fledged anti-malware blocker and new protections against some forms of cross-site scripting attacks. The existing phishing filter IE 7 has been renamed SmartScreen Filter and will include blacklist-based blocking...
- Blog posts 2008-07-02
- McAfee S.P.A.M. experiment and more ridiculous HackerSafe failures
- Stay with me here readers, I'm stringing two stories about McAfee together here, a little out of the ordinary, so I hope it makes sense. If you aren't interested in the tech details of which there are very little, please do read for a good laugh. Network World reported...
- Blog posts 2008-07-01
- 2008 Volvo S80 T6 AWD
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- Product reviews 2008-07-01
- Why Microsoft might win in mobile
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- Discussion threads 2008-07-01
- A boon to the Webtop: Adobe makes indexing Flash in search easier
- A boon to the Webtop: Adobe makes indexing Flash in search easierWow!This is a really big deal for Flash developers. We've been waiting a long time for this. No more alternate content solutions and having SEO dweebs trying scab your clients over this issue.Now, all we need is Flash on...
- Discussion threads 2008-07-01
- Lame hands-free law goes into effect in WA State on 1 July 2008
- Lame hands-free law goes into effect in WA State on 1 July 2008Stats prove itFrom http://www.jmu.edu/safetyplan/vehicle/generaldriver/safetybelt.shtml* Approximately 35,000 people die in motor vehicle crashes each year. About 50 percent (17,000) of these people could be saved if they wore their safety belts.* For every one percent increase in safety belt...
- Discussion threads 2008-06-30
- Big Brother Getting Bigger Part 1: USA
- Big Brother Getting Bigger Part 1: USAThis is such a difficult issue ...... because the benefits to these technologies could be great, and they could truly lead to very effective law enforcement, and potentially to a more civilized, less crime-ridden society. But they can also be misused horribly by people...
- Discussion threads 2008-06-30
- Apple plugs 25 Mac OS X security vulnerabilities
- Apple has shipped another Mac OS X monster update to fix a total of 25 documented vulnerabilities that could lead to arbitrary code execution attacks. With Security Update 2008-004, Apple fixes code execution flaws in Launch Services, SMB File Server, System Configuration, VPN and WebKit. ...
- Blog posts 2008-06-30
- What is a company blogger good for?
- I often hear from companies that want to "be social" or "hire a blogger." Usually, there hasn't been any effort put into the question of what they'd like to accomplish from the effort, so I send out the following. Now, you can call me to talk when you have an...
- Blog posts 2008-06-30
- WALL-E: Steve Jobs meets Al Gore
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- Discussion threads 2008-06-30
- Tech giants aim to cut patent trolls off at the pass
- Tech giants aim to cut patent trolls off at the passEasier SolutionAn easier solution to the problem is to get rid of destructive, insidious software patents completely. Software should never have become patentable.Software patents == utter corruption of our market and will be a major cause of the US losing...
- Discussion threads 2008-06-30
- The Steve Jobs Standard
- The Steve Jobs StandardWell saidIn a world of greed, that last sentence was a breath of fresh air.Amen, Tom ntntThe unsung hero of AppleJohnathan Ive.An Apple product develops something like this:Jobs to Ive: Give me something sexy.Ive: Here you go.Jobs: Awesome.Gee - Maybe he should be a SaintNo doubt Steve...
- Discussion threads 2008-06-30
- "Family Guy" creator and Google team up
- "Family Guy" creator and Google team upUh, How is this good?Is this part of Google's BS "do no wrong"? That family guy show isnt exactly one of the most family friendly shows out there. Honestly, it sucks. I wouldnt have a thing to do with the...
- Discussion threads 2008-06-30
- Bad leadership causes failed IT [guest blogger]
- Bad leadership causes failed IT [guest blogger]From the Obvious to the executionMuch of what you say is true, and as you point out much has been written on this subject, and very little changes.Having delivered some very successful projects myself, the biggest success factor is a clear delineation between, business,...
- Discussion threads 2008-06-29
- Repair of my HTC Advantage Part 6
- Repair of my HTC Advantage Part 6Customer ServiceI wish I knew how to get Powers that Be to do something to my Sprint account...It has been borked since December when it didn't migrate properly to their new billing system. For a while, Sprint couldn't even LOOK at the account, they...
- Discussion threads 2008-06-28
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