Computer
An electronic device which is capable of receiving information (data) in a particular form and of performing a sequence of operations in accordance with a predetermined but variable set of procedural instructions (program) to produce a result in the form of information or signals.
or
Computer 💻 is an electronic device which is also the advance calculator used to make work simple and easier.
To learn about computer we must learn about
1) Electronics
2) logical software interface
3) Computer languages