A computer system has two major components, hardware and software. In practice, the term hardware refers to all the physical items associated with a computer system. Software is a set of instructions, which enables the hardware to perform a specific task.
COMPUTER HARDWARE
A computer is a machine that can be programmed to accept data(input) and process it into useful information(output). It also stores data for later resue(storage). The Processing si performed by the hardware. The computer hardware responsible for computing are mainly classified as follows:
INPUT DEVICES: allows the user to enter the program and data and send it to the rpocessing unit. The common input devices are keyboard, mouse and scanners.
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