Character Representation in Data Structures

Character Representation
 We can also interpret some series of 1s and 0s as characters/alphabets.
 We assign a series of 1s and 0s some English characters.
 Generally, we can represent 2 n characters, in a scheme that uses n bits to
represent characters.
– e-g: 8 bits for each characters would represent 256 characters.
 How many bits needed to represent English characters????
 26 CAPITAL case LETTERS
 26 Capital + 26 Lower case letter
 26 Capital + 26 Lower + Digits + Special Characters.
 Different schemes for representation of characters representation have been
proposed.
– ASCII is one such representation where each 7 bits are used to
represent English characters.
– e.g:
 A is represented by 01000001
 B is represented by 01000010
 Some characters representation schemes are
– ASCII: American Standard Code for Information Interchange
– EBCDIC: Extended Binary Coded Decimal Interchange Code
– Unicode: Universal Coding

,  ASCII:

– American Standard Code for Information Interchange
– It was designed in the early 60's, as a standard character set for
computer and electronic devices.
– Representation of English letters and some other characters
– Each character is represented using 7 bits, while one bit is used for parity
Checking.
– 7 bits could represent 128 characters.