What is ASCII
ASCII (American Standard Code for Information Interchange) is a 7-bit character encoding. Binary representation of ASCII codes are used to store text in computers, ASCII was initial introduced to encode English characters but modern systems use Unicode which is wide enough to hold foreign language characters like Chinese and Japanese have a historical basis in ASCII, ASCII has its roots on the teleprinter code used at Bell data services, The American National Standards Institute previously called the American Standards Association or ASA and then United States of America Standards Institute or USASI developed ASCII keeping its base on the teleprinter encoding systems, Outside of technical jargons ASCII simply means plain text without any formatting, Notepad is one of the popular software on windows platform which can be used to save plain text uses ASCII encoding.
Few examples for ASCII code are as follows
ASCII code for a is 97 in decimal and 61 in hexadecimal and 01100001 in binary
ASCII code for & is 38 in decimal and 26 in hexadecimal and 00100110 in binary
Code 39 is '(single quote) and 27 in hexadecimal and 00100111 in binary
ASCII à is 133 in decimal and 85 in hexadecimal and 10000101 in binary
Note: Binary value represents how each character will be stored on a disk.
ASCII table chart
ASCII character codes representation in Decimal,Octal,Hex and Binary
Extended ASCII Codes
Extended ASCII character codes representation in Decimal,Octal,Hex and Binary