LiIon batteries are the current standard for laptop computers. Microsoft isn`t the only one interested in home-theater computers. Serial devices use different pins to receive and transmit data -- using the same pins would limit communication to half-duplex, meaning that information could only travel in one direction at a time. During a powerful storm, one of the biggest risks is having the roof ripped off your house. Your cable provider could simply modulate the different cable-TV programs onto all of the normal frequencies and transmit that to your house via the cable; then, the tuner in your TV would accept the signal and you would not need a cable box. Other useful applications to look into are anti-spyware or anti-adware programs. In the next section, we`ll look at a great and inexpensive way to add streaming video to your TV. Although the effects in films like Avatar are giving 3D technology a whole new generation of fans, 3D has been around a while -- way before the 1950s, in fact. The only way around this is to discharge the battery completely before recharging it.



















The spark plugs fire with as much as 75,000 volts, which is a much higher voltage than the battery produces. The CPU produces a lot of heat, so a desktop computer uses circulating air, a fan and a heat sink -- a system of plates, channels and radiator fins used to draw heat off of the processor -- to cool off. Some higher end laptop models reduce heat even further with liquid coolant kept in channels alongside the heat pipe. Security -- A laptop`s small size and light weight make it an easy target for thieves, so many models feature ports for cable locks or motion sensors. The result is that people in hurricane-prone areas get a little more lead time to make preparations and evacuate. Tornadoes are a scary threat -- not just because they kill hundreds of people in the U.S. Some people also modify their computers for cosmetics or performance.



















Desktop computers have multiple bays for installing additional drives, such as CD and DVD ROM drives. The success of the PC Convertible was the catalyst for competitors like Compaq and Toshiba to switch to the clamshell design in their portable computers. ­ Like a desktop, a laptop has an internal hard disk drive, which stores the operating system, applications and data files. The hard drive, other disk drives and LCD display all use substantial battery power. Some motherboard processors mount directly to the motherboard without the use of a socket. Your motherboard should have come with a face plate for its back connectors. Hard drives are pretty standard, and SODIMM system memory is easy to come by, but other parts may take some digging. Come June 12, 2009, all analog TV broadcasts will permanently go silent in the United States. At the head-end, the cable providers will have, or lease space for a third-party ISP to have, servers for accounting and logging, Dynamic Host Configuration Protocol (DHCP) for assigning and administering the IP addresses of all the cable system`s users, and control servers for a protocol called CableLabs Certified Cable Modems -- formerly Data Over Cable Service Interface Specifications (DOCSIS), the major standard used by U.S.



















Laptops frequently share memory between the CPU and the GPU, saving space and reducing power consumption. However, space in a laptop is in much shorter supply. They last longer between charges than NiCad but overall have a shorter total lifespan. Most screens measure between 12 and 17 inches, and the size of the screen affects the overall size of the laptop. Screen size -- A larger screen can make a laptop better suited for playing games or watching movies. GPU manufacturers ATI and nVidia both make GPUs specifically for laptops. A few specialty laptops, designed for gaming enthusiasts, include more powerful GPUs and additional video memory. Great Plains, there are few things more terrifying than really, really bad weather. In some cases, these drive bays are not just limited to drives but will also accept extra batteries. However, unlike a desktop computer, a laptop is portable and can run on batteries alone. Kay`s Dynabook never got past sketches and a cardboard model, but it set the wheels in motion for the development of a truly portable computer.



































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