Write 10 output input and storage …

Input devices
Input devices take data from the 'outside world' (i.e. outside of the computer) and send it to the Central Processing Unit for processing. Data can be collected and entered into a computer in a range of ways. These include, for example, a keyboard, a mouse, a graphics tablet, a touch screen, a bar code reader, a magnetic stripe reader and so on. So data from the world outside of the computer is entered into the computer system using ‘input devices’.

Output devices
Every computer system will need to have a way of displaying information or printing information out so that it is useful to humans. There needs to be, therefore, some ‘output devices’. A very useful output device is a VDU (or Visual Display Unit). Another handy one that allows you to produce ‘hardcopy’ (i.e. a printout on paper) is a printer. It is possible that you also need an audio output. Speakers or headphones would be useful in these circumstances!