To letters, numbers, punctuation marks, and the most common specialĬharacters. Of 128 decimal numbers ranging from zero through 127 assigned The standard ASCII character set consists Later-day standards that document ASCII include ISO-14962-1997 and ANSI-X3.4-1986(R1997).ĪSCII, pronounced 'ask-key', is the common code for Other sourcesĪlso credit much of the work on ASCII to work done in 1965 by Robert W.ĪSCII was established to achieve compatibility between various types of data processing equipment. That was proposed by ANSI in 1963, and finalized in 1968. For Information Interchange is a standard seven-bit code