mainframes
nounUK /ˈmeɪnfreɪmz/
US /ˈmeɪnfreɪmz/
Mainframes are very big, powerful computers that many people can use at the same time.
The bank uses mainframes to keep track of millions of accounts.
RELATED WORDS
OTHER MEANINGS
2. The main frame or structure of something, such as a building or vehicle.
The mainframes of the two bicycles were painted bright red.
3. The central processing unit or main body of a computer system, as opposed to its peripherals.
Engineers replaced the mainframes inside the old machines.
4. Large, established computer systems in an organization, often contrasted with newer smaller devices.
The company still relies on its mainframes for payroll.