Operator - GCSE Computer Science Definition
Reviewed by: James Woodhouse
Published
In the context of GCSE Computer Science, an 'operator' is a special symbol or word that tells the computer to perform a specific task or calculation in a program. Operators are used in programming to handle data and variables, like adding numbers, comparing values, or checking if things are equal. For example, the plus sign (+) is an arithmetic operator that adds two numbers together, while the equal sign (==) is a comparison operator that checks if two values are the same. Operators are important because they help us write instructions that tell the computer exactly what to do.
All specifications will require you to know:
Arithmetic operators:
+
,-
,*
,/
,MOD
,DIV
,^
Relational (comparison) operators:
=
,!=
,<
,>
,<=
,>=
Boolean (logical) operators:
AND
,OR
,NOT
Examiner-written GCSE Computer Science revision resources that improve your grades 2x
- Written by expert teachers and examiners
- Aligned to exam specifications
- Everything you need to know, and nothing you don’t

Share this article