In computing, input/output, or I/O, refers to the communication between an information processing system (such as a computer), and the outside world – possibly a human, or another information processing system.
SWDL Systems. Based in Harston, Cambridge and Tunbridge Wells, Kent, we are an established IT business, specialising in the design, supply and installation of computers and networks.
URL: http://www.swdl.co.uk