Definition of “computer” - Learner’s Dictionary

computer

noun [ C ] us uk /kəmˈpjuːtər/
Extra Examples
James spends hours on his computer.I just like playing with my computer.She's lost without her computer.Make sure you switch your computer off.I spend most of my day working in front of a computer screen.

A1 an electronic machine that can store and arrange large amounts of information:

We've put all our records on computer.
computer software
computer games

(Definition of “computer” from the Cambridge Learner's Dictionary © Cambridge University Press)