Encoding,Decoding,Differences between unicode and ASCII

Encoding:

1) Encoding is the process of transforming information from one format into another

2) Encoding is the process of putting a sequence of characters (letters, numbers, punctuation, and certain symbols) into a specialized format for efficient transmission or storage.

3) Encoding and decoding are used in data communications, networking, and storage

4) In encoding the data is converted into machine-readable format.

5) It is used to convert plain text into a different form by means of a code.

6) Data may also be encoded for security reasons

Decoding:

1) Decoding is the reverse of encoding, which is the process of transforming information from one format into another.

2) It also the process of restoring original messages from the forms in which they were transmitted, stored or enciphered by applying a suitable code.

3) The encoded code is Converted into ordinary (original) language

4) A secret key or password is required for decryption of the content that is encoded.

Differences between ASCII and Unicode:

1) ASCII is a 7-bit encoding technique which assigns a number to each of the 128 characters used &

Unicode is a coding system for electronic text that includes every written alphabet in existence

2) The range of ASCII is 128 characters (95 visible and 33 control) and supports only one script and

The Unicode covers 1, 07,000 characters and 90 scripts when it comes to range.

3) ASCII is a 7-bit character set, designed to run in a computer environment of at least 8 bits &

The Unicode character set is a 27-bit character encoding intended to eventually include every character in common use in every known language

4) It defines 128 characters numbered from 0 to 127, or in hexadecimal from 00 to 7F &

Unicode includes the ASCII set as its first 128 characters and many characters.

5) ASCII supports only the American English and

Unicode supports many of the world’s languages.

6) Most software and communication programs understand ASCII and

Not all software and communication programs understand Unicode.