Monday, September 30, 2013

Personal computer hardware [Part 2]

Main memory

It is a fast storage that is directly accesible by the processor. The main memory is used to store the currently executing program and instantly needed data.


Hard disk

They storage data and programs even when there is no power but they require power to perform write and read usage.


Visual display unit

Also called computer monitor or just display, the visual display unit is a piece of electrical equipment which displays images from the computer.