Daily Practice - GCSE Computer Science
Systems, data representation, networks, algorithms and programming.
30th July 2026
- 1SQL and Data Handling
A table called members has fields memberId, firstName, lastName and joinYear. Write an SQL statement that adds a new record with memberId 12, firstName 'Priya', lastName 'Shah' and joinYear 2026.
- 2Trace Tables and Binary/Hex Conversions
Convert the 8-bit binary number 01011010 to denary.
- 3Systems Architecture
State the three stages of the fetch-decode-execute cycle in the order they occur.
- 4Memory and Primary Storage
A photo file is 3.5 MB in size. Calculate its size in kilobytes (KB). Use 1 MB = 1000 KB.
- 5Secondary Storage
Give one reason why RAM on its own is not enough, and a computer also needs secondary storage.
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