Teach-ICT OCR GCSE Computing - representing characters using ASCII and Unicode character sets

THE education site for computer science and ICT

SITE HOME

GCSE Computing

GCSE Computing Home Page

Unit A451 Topics

GCSE Computing Quizzes

CHARACTERS

Characters Home

THEORY

Introduction

1. Introduction

binary codes to represent characters

2. Binary Codes

character sets

3. Character Sets

unicode

number of characters in character sets

5. Number of Characters

1. Introduction

Specification point:

i) Explain the use of binary codes to represent characters

ii) Explain the term, 'character set'

iii) Describe with examples (for example ASCII and Unicode) the relationship between the number of bits per character in a character set and the number of characters which can be represented.