Rules To Develop any Language

Communicating with a computer involves speaking the language the computer understands, which immediately rules out English as the language of communication with computer. However, there is a close analogy between learning English language and learning C language. The classical method of learning English is to first learn the alphabets used in the language, then learn to combine these alphabets to form words, which in turn are combined to form sentences and sentences are combined to form paragraphs. Learning C is similar and easier. Instead of straight-away learning how to write programs, we must first know what alphabets, numbers and special symbols are used in C, then how using them constants, variables and keywords are constructed, and finally how are these combined to form an instruction. A group of instructions would be combined later on to form a program

The C Character Set

A character denotes any alphabet, digit or special symbol used to represent information. Figure below shows the valid alphabets, numbers and special symbols allowed in C.

Courtesy: LetUs C 5th Edition  by Yashavant P. Kanetkar