ASCII & Unicode Characters 2022 | GCSE Computer Science Revision

1.2.4 Data Storage - Characters

For your exam you need to know:
* The use of binary codes to represent characters
* The term 'character set'
* The relationship between the number of bits per character in a character set, and the number of characters which can be represented, e.g.:
- ASCII
- Unicode

Required:
* How characters are represented in binary
* How the number of characters stored is limited by the bits available
* The differences between and impact of each character set
* Understand how character sets are logically ordered, e.g. the code for 'B' will be one more than the code for 'A'
Note: Binary representation of ASCII in the exam will use 8 bits

Not required
x Memorisation of character set codes

Chapter Makers / Time Stamps
00:00 Data Storage of Characters
00:08 Character Sets
02:28 ASCII
03:08 Unicode
03:44 Compare ASCII and Unicode
04:44 More GCSE revision videos / outro

OCR GCSE Computer Science - Paper 1 - Computer Systems section 1.2.4 Data Storage subsection Characters