Daily Practice · GCSE Computer Science

Daily Practice - GCSE Computer Science

Systems, data representation, networks, algorithms and programming.

8th July 2023

5 questions · GCSE · 123 questions in this band

1
Boolean Logic
State the two values a Boolean data type can hold.
2
Data Representation: Number Systems
Add the 8-bit binary numbers 00101101 and 00010011, giving your answer as an 8-bit binary number.
3
Data Representation: Images, Sound and Compression
A row of pixels is encoded using run-length encoding as: 3W 4B 3W. State the original row of pixels it represents.
4
Programming Practice: Writing and Refining Programs
A programmer wants any syntax error in their program to be reported before the program starts running at all. State whether a compiler or an interpreter behaves this way, and explain why.
5
SQL and Data Handling
Define the term 'primary key' as used in a database table.

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