Monday, February 1, 2010

Hardware


A PC has four main components, the mouse, keyboard, monitor and CPU. The CPU of a PC is the "brain". The mouse, monitor, and keyboard would not do anything without the tower (CPU) running it. Inside the tower is where the motherboard containing computer chips. The tower also contains a converter to transfer energy to the rest of the computer. The energy however creates a lot of heat that could potentially overheat the CPU. To avoid this a CPU needs a fan to blow out all of the hot air from the case (or CPU).

Peripherals are the added extras to a computer. Examples of peripherals are printers, scanners, fax machines, and tablets. These things do not NEED to be connected but they do make using the computer easier or more fun to use.

A LAN is a local area network which means that an office building or school has all of their computers connected to switches, that connect to servers that connect to the Internet. The servers then "deliver" the Internet to the computers on the network. A LAN can be useful because it connects all of the computers in one or more buildings. So if one person is on a computer in their library they can access their files, and they can also access their files on the computer in the lab as well. Although all of this only works correctly if a person saves to the correct location. There are 3 different drives that documents can be saved to, the local, removable, and network drives.

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