C language Introduction

C language is the most popular and widely used high-level programming language in the world.
C language is better than other advanced languages for operating systems and system programs and hardware operations. Many large applications are written in C language.

The C language has strong plotting ability, portability, and strong data processing capabilities. Therefore, it is suitable for compiling system software, 3D, 2D graphics, and animation. It is a high-level language for numerical computing.

Common compilation software include Microsoft Visual C, Borland C, Watcom C, Borland C Builder, Borland C 3.1 for DOS, Watcom C 11.0 for DOS, gnu djgpp c, lccwin32 C Compiler 3.1, Microsoft C, High C, etc ......

C Language Development History
C language development is quite interesting. Its prototype is ALGOL 60 language.
In 1963, the University of Cambridge developed the ALGOL 60 Language into the CPL (Combined Programming Language) Language.
In 1967, Matin Richard of the University of Cambridge simplified the CPL language and produced the BCPL language.
In 1970, Ken Thompson of Bell Labs modified BCPL and gave it an interesting name "B Language ". It means to cook CPL language and extract its essence. He wrote the first UNIX operating system in Language B.

In 1973, language B also gave us a "boil", D. m. RITCHIE finally designs a new language based on the B language. He takes the second letter of BGPL as the name of the language, which is the C language.

To facilitate the promotion of UNIX operating systems, Dennis M. Ritchie published the C language compilation text "portable C language compilation program", which does not depend on the specific machine system in 1977.

In 1978, Brian W. Kernighian and Dennis M. Ritchie published The famous book "The C Programming Language", making C Language The most popular advanced Programming Language in The world.

In 1988, with the increasing popularity of micro-computers, many C language versions emerged. Because there is no unified standard, there are some inconsistencies between these C languages. To change this situation, the American National Institute of Standards (ANSI) has developed an ANSI standard for the C language and has become the main feature of the current C language standard. C language has developed rapidly and has become one of the most popular languages, mainly because it has powerful functions. Many well-known system software, such as DBASE Ⅲ PLUS and dbase iv, are written in C language. Using C language with some assembly language subroutines can better show the advantages of C language, such as PC-DOS, WORDSTAR, is written in this way.