Question

what is need of computer language?

Answer 1

The computer understands only bits 0 and 1.  The processor in the computer understands binary code only.  It is very difficult to write a program in binary code to perform tasks useful to people.   Also, it will be very difficult to detect and correct errors in the programs.

    So a computer programming language, which is closer to human communication (spoken) languages, is used to express the computation as desired by the user.