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Computer basic Notes

what can a computer do, small detail. Accepts data, Processes data according to instructions, stores data, provides data results
What is the CPU’s Responsibility/ Job? fetch, decode, execute
how do computers store information? Memory
what is ROM? Long term. Information the computer uses again and again. Doesn’t accept new information change not be changed
what is RAM? Short term. Accepts new information for temporary storage
what is BIOS? A type of ROM that is used by the computer to establish when the computer first powers on. (POST)
what is Caching? Storing of frequently used date in extremely fast RAM that connects directly to the CPU
virtual memory is? space on a hard disk used to temporarily store data and swap it in and out or RAM as needed
what is a byte? A byte is the precise size of a single letter, number of symbol
A one-page double-spaced text document is roughly 20KB in sixe Kilobyte KB
Memory is measured in today most computers come with at least 127MB worth of memory Megabyte MB
Gigabyte Hard drives and DVD are measured in GB. Hard drives are now mostly 120 GB+
what is the main circuit board to which all of the other internal components connect? motherboard
where can you find the Power Supply? visible from the back containing the power cord receptacle and the cooling fan.
the first thing loaded onto the computer without it a computer is useless... Operating system (OS)
a PC part that have very high speed connection used by the graphics card to interface with computer Accelerated graphics port (AGP)
what are Ports? an interface that allows a computer to communicate with peripheral equipment
Created by: EM10
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