ABSTRACT
This chapter aims to understand the levels in programming languages. It provides the basics of C programming in order for us to be able to later write simple to moderately difficult programs in C programming language. The chapter analyses numerous examples in order to illustrate basic C programming for firm foundation building. FORTRAN or formula translation was the first practical higher-level programming language invented by John Backus for IBM in 1954. It was later released for commercial use in 1957. A lower-level programming language on the other hand provides little or no abstraction from a computer’s instruction set architecture. C is a programming language originated for developing the Unix operating system. It is a higher-level and an imperative systems implementation language. C has some very attractive characteristics that make it one of the best candidates for systems programming. Arithmetic operators fall under mathematical operators. The C programming language supports the most common arithmetic operator.
