a large digital computer serving 100-400 users and occupying a special air-conditioned room

[ Syn: mainframe computer ]

(computer science) the part of a computer (a microprocessor chip) that does most of the data processing; the CPU and the memory form the central part of a computer to which the peripherals are attached

[ Syn: central processing unit , central processing unit , cpu , cpu , c.p.u. , c.p.u. , central processor , central processor , processor , processor ]