Subscriber operation

As a user operation (engl. Time-sharing operation or time-sharing mode ) refers to a form of multi-tasking operation , wherein multiple users of a computer interactively work with different programs independently.

The computing time available on the computer is divided among the participants (users), with the time allocated to you being exclusively available. As a rule, these time pieces are very short, but often recurring, so that users usually do not notice them.

Subscriber operation was particularly important in the early years of IT; the IT systems, which were still expensive at the time (often mini-computers under OS / 400 or UNIX ) could be used efficiently. The users worked on mostly serially connected data display devices ( terminal ) with monochrome text output ( VT100 ). Nowadays, subscriber operation has lost its importance, but is still used frequently. For example, for Windows 2000 there is the Windows Terminal Server which , in conjunction with low-performance clients (normal PCs), enables user operation on a high-performance server.

Another form is the partnership . There is also a multi-user system with multiple users of a computer in interactive mode on a program to work.

literature

• Peter Mandl: Basic Course Operating Systems, Vieweg + Teubner Verlag, 2008, ISBN 9783834803924 [1]
• Sebastian Dworatschek: Basics of data processing, Walter de Gruyter, 1989, ISBN 9783110120257 [2]
• Manfred Precht, Nikolaus Meier, Dieter Tremel: EDV basic knowledge, Pearson Education, 2004, ISBN 9783827321299 [3]
• Peter Stahlknecht, Ulrich Hasenkamp: Introduction to Business Informatics, Springer, 2005, ISBN 9783540011835 [4]