It is a software which provides service required for the development and execution of application software. The programming languages, language translator, loader, linker are required for the application software development.
Programming Languages
A programming language is a primary interface of a programmer with a computer. A programming language is an artificial language to express computation that can be performed by a computer.
Each language has its own syntax i.e., the set of specific rules and expresses the logical steps of an algorithm . programming languages are divided into two categories; Low Level Language (LLL) and High Level Language (HLL).
Low Level Language (LLL) Low level language is divided into two parts
Machine Language It is sometimes, referred to as machine code or object code. It is a collection of binary digits or bits that computer reads and interprets.
Assembly Language It is used to interface with computer hardware. It uses instructed commands as substitutions for numbers allowing human to read the code more easily than binary. It uses English –like representation to write a program.
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Medium Level Language
It serves as the bridge between raw hardware and programming layer of a computer system. It is designed to improve the translated code before it is executed by the processor.
High Level Language (HLL) It is machine independent language and uses translator. It is also called source code. Some commonly used high level languages are C, BASIC, FORTRAN, PASCAL, etc.