| Notions of monoprogramming, multiprogramming and time sharing as well as the notion of pre-emption are presented. |
| Most remote computers operate on a multiprogramming basis, hence prompt interrupts are not available. |
| Commonly used time-sharing techniques include multiprocessing, parallel operation, and multiprogramming. |
| This role became more important with the rise of multiprogramming, in which several jobs reside in the computer simultaneously and share resources for example, being allocated fixed amounts of CPU time in turn. |
| Supervisor programs also provided multiprogramming capabilities to enable several programs to run at once. |
| An extension of multiprogramming systems was developed in the 1960s, known variously as multiuser or time-sharing systems. |
