Mainframe

Mainframe it’s a computer that can support thousands of applications and input/output devices to simultaneously serve thousands of users.

A mainframe is the central data repository, or hub, in a corporation’s data processing center, linked to users through less powerful devices such as workstations or terminals/ The presence of a mainframe often implies a centralized form of computing, as opposed to a distributed form of computing.

Sources:

Mike Ebbers, John Kettner and others Introduction to the New Mainframe: z/OS Basics, IBM, 2011. – 792 p. – 9