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Computer basic Notes
Question | Answer |
---|---|
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 |