An algorithm is a finite sequence of well-defined, computer-implementable instructions. Algorithms are always unambiguous and are used as specifications for real world implementations.

An algorithm is:

• Defined: there is a specific sequence of steps that performs a task
• Unambiguous: there is a “correct” and “incorrect” interpretation of the steps
• Implementable: it can be performed in code or using hardware

References

• boot.dev

Next -> big-o-notation