Daily Practice · GCSE Computer Science

Daily Practice - GCSE Computer Science

Systems, data representation, networks, algorithms and programming.

3rd June 2026

5 questions · GCSE · 123 questions in this band

1
SQL and Data Handling
A table called books has fields bookId, title, authorId and copiesAvailable. Write an SQL statement that selects the title of every book with more than 2 copies available.
2
Trace Tables and Binary/Hex Conversions
Convert the hexadecimal number FF to an 8-bit binary number.
3
Systems Architecture
A CPU has a clock speed of 4.0 GHz. Calculate how many clock cycles it completes in 2 seconds.
4
Memory and Primary Storage
State how many bits are in one byte, and how many bytes are in one kibibyte (KiB).
5
Secondary Storage
A company backs up its files onto magnetic tape cartridges, each with a capacity of 3 TB. The company needs to back up 20 TB of data. Calculate the minimum number of cartridges needed.

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