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TiVo: An Introduction for the Few Who Dont Know Yet
TiVo will change your life... for the better. Plain and simple: record shows by telling TiVo to record them (not when, what channel, how long, etc.), record all new episodes of X, record all movies w/ so-and-so in them, etc. High Points: Most people know the basics of the concept. Here's the low-down on the things I'm asked most... 1. You can record one thing and watch something else already recorded. 2. You can get a dual tuner TiVo, but you'll need two SEPARATE feeds to the TiVo (i.e., two lines from your satellite dish). Then you can record 2 things at once or watch one/record another. These are more expensive, but you can get a DirecTiVo w/ dual tuner cheaper and then the monthly TiVo fee is about half normal. 3. Pause live TV - if you don't realize the value of this, I can't explain it. :) TiVo has many different versions which all some slight variations. If you want to go beyond 'average guy' level, check out this forum. Comparison to ReplayTV: TiVo seems to have a better interface from what I've seen and what others have said. It's easier to use. However, ReplayTV is more easily hackable - you can access it from the web and the PC easier to convert/archive shows, etc. I have a DVD recorder for this which is another post for another time. Both can be made to do mostly the same things, but you get the idea. My Suggestion I recommend the DirecTiVo Hughes HDVR2 (dual tuner) w/ the Triple LNB dish (this is the oval dish w/ 4 lines from it and it's HDTV ready). It's got the satellite converter box built in so it's only one box to deal w/, the TiVo monthly fee is less and it's dual tuner. This model isn't as hackable as some TiVo's, but it can do some and if you want to go beyond the basics than you probably haven't read this far. Sites: ...and, of course, The Armchair Geek (see below). Bear Cahill is a software engineer in the Dallas, TX area and runs a few websites: The Armchair Geek (thearmchairgeek.com), Webpage Hosting Info (webpagehostinginfo.com), Go To College Online (gotocollegeonline.com) and The Video Exchange Community (videoexchange.org) Publish freely if this resource box is included and links maintained as links.
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This problem can be solved by making better energy efficient airconditioners and by making more energyefficient computers. Many companies have taken a lot of interestin subject. However, nothing substantial has been done primarilybecause of the market requirements. The end users still want to hosttheir sites on the fastest processors which drives the market with thelatest processors. Going at this rate we would reach a time soon whenthe energy required would be much higher than the energy available inthe market. Intel, AMD, Transmeta and Via have all released processors whichconsume very low power. A typical Pentium or AMD processor consumesabout 25 Watts of power, whereas these low powered processors take onlyabout 5 watts of power i.e. about 5 low powered processors wouldconsume as much power as a single main stream processor of today. Theselow powered processors are also generally fan less processors whichmeans lower noise levels too. Intel has the centrino which has a lowerpower consumption than the regular pentiums. Intel also has the armprocessors but those are RISC. Our prime focus would be AMD, Transmetaand Via. They all have some very promising products.One thing to be noted is that most of these low powered processors workonly at about 1.2GHz or lower. So they won't be as fast the pentium4s.Which means one would have to host lesser sites per server. A goodrecommendation would be upto a maximum of 600 sites on aregular pentium 4 server. A low powered processor should comfortablytake about 200 sites. One advantage of these low powered processors isthat they have a very small form factor too. This means that one canhave more such servers in the same space that is typically allocated toa high powered servers. All datacenters use a profitability matrixbased on the following rule: Performance/PerWatt/Per Cubic Foot. This is one place where the low poweredprocessors really score high. AMD Geode? NX Processor familycomprises of the AMD Geode? NX 1250@6W processor, the AMD Geode?NX 1500@6W processor and the AMD Geode? NX 1750@14W processor. Thefirst two in these consume only 6Watts of power and run without acooling fan. According to AMD they provide the highest x86 performancefor fan less operations. They are based on the mobile AMD Athlonprocessor technology.Transmeta was one of the first companies to develop low powered processors.For a long time Transmeta was known as the company where theMicrosoft co founder Paul Allen had interests in and the placewhere Linus Trovalds, the father Linux, worked. Both of them are nolonger part of the organization. Today they are known for the twoprocessor families they have - The transmeta crusoe andthe transmetaefficeonTransmeta Crusoe?-processors range from 500Mhz to 1.2 Ghz. According to Transmeta,Crusoe is a unique combinationof software and hardware. 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Thesefeatures include the implementation of the Quantum-based VIA PadLockRNG (Random Number Generator), and the VIA PadLock ACE (AdvancedCryptography Engine) supporting AES encryption. According to Via, the VIA Eden-NProcessor is the world's smallest, lowest power and most securenative x86 processor. It is a mere 15mm x 15mm in terms of size andconsumes between 2.5W @ 533MHz to 7W @ 1GHz. Via again like Transmeta has not focussed in the server market. Theimages above give a good idea of the benefits of this processor in theserver market. For datacenters, Via may be the best in thePerformance/Per Watt/Per Cubic Foot matrix.Companies like Hitachi make some very good low powered hard disk driveswhich have a very small form factor. They have both IDE's at 7200 rpmas well as SCSI hard drives. Many may think it is better to take higher end servers as the power orheating problem does not directly affect them. 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Right now there are companies that will take away your empty ink cartridges and give you money in return! |
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