Computer is an advanced electronic device that takes raw data as
input from the user and processes these data under the control of set of
instructions (called program) and gives the result (output) and saves
output for the future use.This Computer Fundamentals tutorial covers a foundational understanding
of computer hardware, software, operating systems, peripherals, etc.,
and how to get the most value and impact from computer technology.
Its size affects speed, power and capability. There are primary memory and secondary memory, two types of memories in the computer. Functions of Memory Unit are:
Memory Or Storage Unit:
This unit can store instructions, data and intermediate results. This unit supplies information to the other units of the computer when needed. It is also known as internal storage unit or main memory or primary storage or Random access memory(RAM).Its size affects speed, power and capability. There are primary memory and secondary memory, two types of memories in the computer. Functions of Memory Unit are:
- It stores all the data to be processed and the instructions required for processing.
- It stores intermediate results of processing.
- It stores final results of processing before these results are released to an output device.
- All inputs and outputs are transmitted through main memory.
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