MAINFRAME


Meaning of MAINFRAME in English

main ‧ frame /ˈmeɪnfreɪm/ BrE AmE noun [countable]

a large powerful computer that can work very fast and that a lot of people can use at the same time:

If a problem does occur, a signal is automatically sent to the mainframe.

Longman Dictionary of Contemporary English.      Longman - Словарь современного английского языка.