Unit 2: L3- Representation of text Flashcards
How are characters processed in a computer?
When a key is pressed it is converted into a binary no. so that is can be processed and appear on the screen of the computer
What is a code?
Where each no. represents a character which can be used to convert a text into binary
What is a character set?
A set of symbols that may be represented by a computer at a particular time
What are symbols known as?
Characters
What does ASCII stand for?
American standard code for information interchange
What is standard ASCII used for?
Mostly used for storing characters
How many bits does standard ASCII use?
7 bits
How many characters does standard ASCII use?
128 different characters
How many bits does extended ASCII use?
8 bits
How many characters does extended ASCII use?
256 characters
What is unicode?
An international character set
How many bits does unicode use?
16 bits
How many characters does unicode use?
2^16 characters
