... to effect future input to the system. These include VDUs, printers and speakers. * A storage device is a peripheral unit that allows the user to store data in an electronic form for a longer period of time and when the computer is switched off. This is necessary because data must be saved for future use if the processor is switched off and for transfer from one machine to another. The data can only be read by the computer and is not in human-readable-form. Devices that can hold data include floppy disks, hard disks, a CD R/W and magnetic tape. * Software consists of programs, routines and procedures (together with their associated documentation) which can be run on a computer system The software of a computer system is the various sets of instructions which tell the system how to do things. These sets of instructions are collected together in workable groups ...

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