Characters
Lesson Instructions
Watch and follow the YouTube video, the lesson contains three parts:
Key Information and content - all you need to do here is watch and listen
Learning activity - this activity involves answering different questions about Characters.
Consolidation - these are past exam question and are for deliberate practice to check your understanding.
Characters Full Lesson Video.mp4Task - Characters
Task - Exam Questions - Deliberate Practice
Mark Scheme
Question 1
(a)
One mark for each bullet point
Each character is given a numberic code
Including symbold, digits, upper and lower case
This code is then stored in binary
Each character takes 1 byte
Text is stored as a series of bytes (1 per character)
Some codes are reserved for control characters (eg TAB, Carriage Return)
(b)
One mark for each bullet point
All the characters which are recognised/can be represented by the computer system
(c)
One mark for each bullet point
Unicode has a much larger character set
... and can represent many more characters from all alphabets.
Because unicode uses 16 bits...
... and ASCII uses fewer/7/8 bits.
Question 2
0100 0011 0100 0001 0100 0010
1