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Mainframe

//ˈmeɪnˌfɹeɪm// noun

Noun

1
A large, powerful computer able to manage very many simultaneous tasks and communicate with very many connected terminals; used by large, complex organizations (such as banks and supermarkets) where continuously sustained operation is vital.
2
(computer science) the part of a computer (a microprocessor chip) that does most of the data processing wordnet
3
A computer chassis that hosts and interconnects modules that perform various tasks.
4
a large digital computer serving 100-400 users and occupying a special air-conditioned room wordnet
5
The main frame of a vehicle etc., more commonly main frame.

From main + frame.

Unscramble this word: mainframe