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Laptops

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Computer Studies Laptop

Laptops still use the same operating systems as desktop computers; hard drives are partitioned and formatted in the same way, keyboards function in much the same way. You can attach peripherals such as a printer or scanner, input data from flash drives, digital cameras etc. Use the internet, send and receive e-mails, play your video or music files create your text and graphical images, transfer and backup your files to external hard drives or flash drives, all with the added ability of being able to take this with you when you travel, a portable office or home entertainment system that is small and lightweight and can be transported with relative ease.

There are fundamental differences between desktop and laptop computers, with a laptop computer the CPUs need to reduce their size, power usage, and heat generation, Ram modules, hard drives and wireless cards use a smaller form factor, and input and output ports can be specific to the requirements of the individual make and model which means that there is no real motherboard form factor as there is with desktop computers. If you're looking to increase the laptops functionality to have desktop capabilities, where you can utilise external monitors, keyboards, optical drives, 5.1 sound systems etc. this can be done by the various connectors like USB, RJ45 for Ethernet connectivity, AGP and DVI for external monitors, these connectors can be found around the outside edges of the laptop, most modern laptop computers now have built-in wireless functionality increasing the capabilities even further by bringing easy access to the internet when you are on the move, making portable computing attractive, affordable and readily available to a mass market. For more information on laptop computers wikipedia.org

Laptop Memory

Computer Studies Laptop memoryEarly laptop memory was proprietary if you had an IBM laptop you needed IBM memory modules the same applied to other manufactures of laptop computers. This began to change and the industry through the PCMCIA group developed a form factor to make memory modules compatible to all the industries manufactures. The RAM used in laptops is either SO-DIMMS Small outline Dual inline memory module at a size of 68mm x 32mm, using 72 pin, 144 pin and 200 pin packages. The 72 pin package SO-DIMM was only 32 bits wide so it needed to be installed in pairs. The DDR3 uses a 204 pin package. The MicroDIMM, is about half the length of a SO-DIMM at a size of 45mm x 30mm, using a 64 bit data bus, and comes in 144 pin and 172 pin versions and a DDR2 214 pin package. If your laptop uses shared memory this is where the video card utilises part of the systems memory as in TurboCache developed by nVidia and HyperMemory by ATI. Laptop DIMMs also include a 68 pin DIMM package and 144 pin DIMM package, there was also a Rambus SO-RIMM 160 pin package. For more information on RAM wikipedia.org

Useful web sites
www.laptoprepair101.com
www.fonerbooks.com

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