What is the need to input a value to the computer?

Some of the reasons why a program might need to accept input values from a user are:

1. To allow the program to perform calculations or processes using data provided by the user.
2. To enable the program to make decisions or take actions based on user input.
3. To allow the program to interact with the user and receive commands or instructions.
4. To change the behaviour of the program making it more specific to the user's needs based on the input data.