In the 1940s in the U.S. there is a researcher who wants to use a computer software together. Ditahun 1950s when the types of computers began to swell until the creation of a super computer, because the computer hardware prices mehalnya then there are the demands of a computer must serve multiple terminals. From this it appears the concept of time-based distribution process known as TSS (Time Sharing System). Shape first network (Network) applied computer.
TSS siste several terminals connected in series to a

