The programming process is a problem solving process, and it consists of the following activities:
1. Defining the problem.
2. Preparing an algorithm.
3. Preparing a program flowchart.
4. Coding the program.
5. Debugging and testing.
6. Documenting.

A computer program consists of a group of instructions for a computer that cause it to perform a desired task.

A description of the sequence of steps required to solve a problem.

We must consider the computer's limited capabilities during preparing algorithm as follows:
A computer can perform arithmetic operations: + , - , *, and /
It can compare two things and, on the basis of the result of the comparison, choose among alternative courses of action.
It can move data about in its memory.
The computer can also input data and output results.

This is the first attempt of preparing an algorithm to solve a specific job that let the computer to do. In this algorithm, it may miss some sequence of steps or it may have any logical error.