The basic parts of computer system are:
· Input Unit
· The Central Processing Unit
· Output Unit
The Input Unit:
Input devices are the dev ices which are used to feed programs and data to the computer. The input system connects the external environment with the computer system. The input devices are the means of communication between the user and the computer system. Typical input devices include the keyboard, floppy disks, mouse, microphone, light pen, joy stick, magnetic tapes etc. The way in which the data is fed into the computer through each of these devices is different. However, a computer can accept data only in a specific form. Therefore these input devices transform the data fed to them, into a form which can be accepted by the computer. These devices are a means of communication and inter 1 station between the user and the computer systems. Thus the functions of the input unit are :
· accept information (data) and programs.
· convert the data in a form which the computer can accept.
· provide this converted data to the computer for further processing.
