Computers come in a huge variety of shapes, and sizes. You will be most familiar with Personal Computers (PCs) – the small computer on your desk, or the laptop in your bag.
However there are some computers that fill whole buildings and others that are small enough to fit in a slim mobile telephone. Whatever the size, all computers do the same thing…
However there are some computers that fill whole buildings and others that are small enough to fit in a slim mobile telephone. Whatever the size, all computers do the same thing…
A computer is a device that stores and processes information according to a set of instructions.
In other words, a computer is a device that you feed information into and it does something with the information (processes it) based on some instructions (a ‘program’) that it has been given.
An Information Processing System
A computer is an information processing system...
It doesn’t matter what type of computer we are looking at, or what programs the computer is running, it always takes in information and does something with it.
For example, a spreadsheet running on a personal computer...
For example, a spreadsheet running on a personal computer...
Or a game being played on a games console (these are computers too)...
The huge room-sized 'mainframe' above and the tiny mobile phone circuitboard below it are both computers
