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Hardware refers to the physical equipment used for the input, processing, output, and storage activities of a computer system. It consists of the following:
Central processing unit (CPU)
Primary storage
Secondary storage
Input technologies
Output technologies
Communication technologies
The central processing unit (CPU): performs the actual computation inside any computer. The CPU is a microprocessor made up of millions of microscopic transistors embedded in a circuit on a silicon chip.
Primary memory: Is the working space of the computer. It holds the program that is currently being executed. It is fast and expensive memory that allows the computer to access data quickly. E.g. RAM, ROM
Secondary memory: The memory device that works as supplement to main memory is the secondary memory.
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