Programming language is important because it defines the relationship, semantics and grammar which allows the programmers to effectively communicate with the machines that they program.
A programming language serves several purposes:
- You can instruct the computer what to do in a human-readable form
- Allows the programmer to structure the instructions into functions, procedures, etc.
This also allows the program to be broken into “chunks” which can be developed by a group of developers
- Provides portability - the low-level instructions of one computer will be different from that of another computer.