mainframe

n. main computer which can serve many users simultaneously (Computers)

Mainframe may refer to one of the following:Mainframe computer, large data processing systemsMainframe Entertainment, a Canadian computer animation and design company.Mainframe is the city that the CGI cartoon ReBoot takes place in.Mainframe (band), a 1980s Electropop bandMainframe is the name of two fictional characters from Marvel ComicsMainframe (comics) appears in the series A-NextMainframe appears in the Guardians of the Galaxy seriesMainframe (Transformers) is An Autobot character in the Transformers series.A character in the G.I. Joe universe.A character from the game Gunman Chronicles.
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Noun
1. a large digital computer serving 100-400 users and occupying a special air-conditioned room
(synonym) mainframe computer
(hypernym) digital computer
(hyponym) supercomputer
2. (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
(synonym) central processing unit, CPU, C.P.U., central processor, processor
(hypernym) electronic equipment
(part-holonym) computer, computing machine, computing device, data processor, electronic computer, information processing system
(part-meronym) CPU board, mother board
(classification) computer science, computing

n. mainframe, main computer which can serve many users simultaneously (Computers)

A large computer, usually one to which other computers and/or terminals are connected to share its resources and computing power.