Daily Practice · GCSE Computer Science

Daily Practice - GCSE Computer Science

Systems, data representation, networks, algorithms and programming.

11th August 2023

5 questions · GCSE · 123 questions in this band

1
Producing Robust Programs
A 'quantity' field on a website must only accept whole numbers from 1 to 10. Which validation check identifies that 15 has been entered?
2
Boolean Logic
A logic circuit has inputs C and D. C feeds into a NOT gate; the output of the NOT gate and D feed into an OR gate, giving output Y. Write the Boolean expression for Y and state its value when C = 1 and D = 0.
3
Data Representation: Number Systems
Convert the denary number 5 to a 4-bit binary number.
4
Data Representation: Images, Sound and Compression
State one example of a file format that commonly uses lossy compression.
5
Programming Practice: Writing and Refining Programs
Write the pseudocode header and body for a function called isAdult that takes one integer parameter called age and returns True if age is 18 or over.

You are looking at an earlier sheet. Today's sheet is the one that adds a day.

Your run is kept in this browser only, and there is no account.

Every sheet is deterministic: the same date always regenerates the same five questions. All of August 2023, including the monthly compilation PDF.