A queuing model for a simple case of time sharing

Of late, considerable attention has been given to time-sharing computer systems. To provide a close relationship between the computer and its users, these systems typically handle a variety of remote terminals, from typewriters to computer graphic display systems. Although many source terminals may employ the computer concurrently, the objective is to provide a form of terminal service that makes it appear to each terminal operator as if he were the only one using the computer.