Units of Information (AQA GCSE Computer Science): Quizzes
📚Quizzes
Practise the questions
12 questions from this quiz
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Practise the questions
12 questions from this quiz
What are the two states that transistors in computers can be in?
What are the two states that transistors in computers can be in?
On or off
What is the most basic unit of information in computing?
What is the most basic unit of information in computing?
A bit
What symbol is used to represent a byte?
What symbol is used to represent a byte?
Capital B
How many bits are grouped together to make one byte?
How many bits are grouped together to make one byte?
8 bits
What is a nibble in computing?
What is a nibble in computing?
4 bits grouped together
By what factor is each unit in the storage hierarchy larger than the previous one?
By what factor is each unit in the storage hierarchy larger than the previous one?
1000 times
What is a byte large enough to store?
What is a byte large enough to store?
One character
When converting UP the hierarchy (e.g., bytes to kilobytes), what operation do you use?
When converting UP the hierarchy (e.g., bytes to kilobytes), what operation do you use?
Divide by 1000
When converting DOWN the hierarchy (e.g., MB to bytes), what operation do you use?
When converting DOWN the hierarchy (e.g., MB to bytes), what operation do you use?
Multiply by 1000 for each step
How many kilobytes are in 2.5 megabytes?
How many kilobytes are in 2.5 megabytes?
2500 KB
How many bytes are in 3 gigabytes?
How many bytes are in 3 gigabytes?
3,000,000,000 bytes
What does the prefix 'kilo' mean in the storage unit hierarchy?
What does the prefix 'kilo' mean in the storage unit hierarchy?
1000