FUNDAMENTALS OF COMPUTER

Detailed explanation-1: -The C programming language was devised in the early 1970s as a system implementation language for the nascent Unix operating system.

Detailed explanation-2: -The C preprocessor is a macro processor that is used automatically by the C compiler to transform your program before actual compilation. It is called a macro processor because it allows you to define macros, which are brief abbreviations for longer constructs.

Detailed explanation-3: -C started with the BCPL language, Ken Thomson had access to a compiler for it that ran on their General Electrics 635 main frame. Unhappy with the language, Thomson used BCPL to write a compiler for the B language, an evolutionary step beyond BCPL that removed some of the technical problems in BCPL.

Detailed explanation-4: -C, computer programming language developed in the early 1970s by American computer scientist Dennis M. Ritchie at Bell Laboratories (formerly AT&T Bell Laboratories).