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computer basic notes
Question | Answer |
---|---|
A computer does what four things? | accepts, processes, stores, and provides data |
What is the brain of the computer? | the microprocessor |
Everything a computer does is overseen by what? | The Cpu |
When a CPU "fetches," it means? | it gets software instructions from the memory telling what to do with the data |
When a CPU "decodes," it means? | determines what the instruction means |
When a CPU "executes," it means? | it performs storage media |
Name the different types of storage media. | floppy disk 1.444MB, CD 640MB, CD 17 GB, hard drive 80 GB, flash drive 8 GB |
What is basic input/output system? | (BIOS) a type of ROM that is used by the computer to establish when the computer first powers on |
ROM is what? | Read Only Memory, long term memory that the computer uses again, and again, doesn't accept new information |
what is RAM? | short term memory that accepts new information for temporary information |
what is caching? | storing of frequently used data in extremely fast RAM that connects directly to the CPU |
What is virtual memory? | space on a hard disk used to temporarily store data and swap it in and out of RAM as needed |
what is flash memory? | solid state storage device that retains data after a computer is turned off |
what is the motherboard? | main circuit board to which all of the other internal components connect |