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1What is cache memory?A block of high speed memory used by the CPU so it can access the data at the same time
2What are the functions of the CPU?-It performs arithmetic operations on data.
-It fetches and executes instructions.
-It moves data to and from memory locations.
3When is virtual memory used?It is when the computer does not have enough RAM to hold all the data and programs currently in use.
4what is an input device?A device in which you can enter something into a computer system.
5what is an output device?It is used to show the result of data that has been processed by a computer system.