Computer Program

What is a Computer Program?

Set of instructions given to the computer is known as Computer program. Programmers use different programming languages to write computer programs.

Programming languages can be divided into:

1. Low-level programming languages(Machine language & Assembly Language)
2. High-level programming languages

Low-level programming language

• Consiste of 1 s and 0 s
• Machine dependent
• A computer can directly understand its machine language
• Tedious and error-prone for programmers

Example:

Machine Language:- 11000100110001001111000

Assembly language

• English like abbreviations called mnemonics formed the basis
• Clearer to humans but incomprehensible to computers
• Need to translate to machine language using translator programs called assemblers

Example:

load salary

store total

High-level programming language

• Instructions look almost like English and mathematical notations
• Easy for humans to understand
• Translator programs convert high-level programming languages into machine language

Example:

C, C++, python and java are some of the high-level programmings.

Program Code Translation

Source Code 🠆 Translator 🠚 Object Code(machine language Code)

The translator could be:

• Assemblers(Convert assembly language programs to machine language)
• Compilers(Convert high-level language programs to machine language)
• Interpreters(Execute high-level language programs line by line)