Storage Unit
The data and instructions that are entered into the computer system through input unit have to be stored inside the computer before the actual processing starts. Similarly, the results produced by the computer after processing must also be kept somewhere inside the computer memory before being passed on to the output units. The storage unit or the primary storage of a computer system is designed to provide all these needs. It provides space for storing data and instructions, space for intermediate results, and also space for the final results. The storage unit performs following functions:
- Stores all the data to be processed and the instructions required for processing (receive from input devices)
- Stores intermediate results of processing
- Stores final results of processing before these results released to an output device
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