Microcomputer Hardware

The users of microcomputer systems must be fully aware of the distinction between hardware and software. The former comprises the physical units of the system: microcomputer, disk drives, video monitor etc., whilst the latter is the stored information, programs or data, that is processed by the computer. It is vitally important to realise that hardware is rugged whilst software is fragile. Handling the hardware with the sort of attention one would devote to a hi-fi system will ensure its continual operation. Inputting incorrect commands from the keyboard may puzzle the computer but it will not break it. On the other hand careless handling of floppy disks or an incorrect command, from the keyboard, can easily destroy stored information at a considerable cost to the user. Incorrect switching on or off techniques will not normally damage the hardware but again can lead to irretrievable loss of essential programs or data, either inside the computer memory or on resident floppy disks.