Strictly speaking, the computer wasn't designed as a telecommunications device.
It has, however, revolutionised communications in more ways than one. The computer that sits on your desk - and the network behind it that connects you to the world outside - has turned into your own post office, telephone and TV, all rolled together into a personal communications centre.
Digital communication is based on numeric codes. At the lowest level we are talking about simple 1s and 0s - 'ons' and 'offs'. This is called a 'binary system' because it uses only two values (the 'decimal system' you ...
The Internet is the communications network that lies behind your computer and connects you to the outside world.
In the beginning, it was a few computers connected ...