1,118 free study cards across 7 topics, written to the Edexcel specification. Study them as flashcards or multiple choice, and rate each one Got it, Almost or Forgot.
Every card is tagged to a topic in the Edexcel GCSE Computer Science specification, so you can revise one topic at a time.
Three cards from the deck, as you will see them in BrainBerry: the question, the answer, and an explanation of why.
Why would a programmer use format () on a string before printing it?
To customise the output so it suits the problem and the user, for example lining values up in columns with a set number of decimal places.
format () puts values into a string whose content is described by symbols and placeholders, written in curly brackets inside the string.
Convert 3 mebibytes into kibibytes.
3 x 1024 = 3072 KiB.
Multiply by 1024 when moving to a smaller unit and divide by 1024 when moving to a larger one. Multiplying by 1000 is a common mistake with binary multiples.
What does integer division give you?
The whole number part of a division, with the remainder thrown away. For example 17 DIV 5 is 3.
In Python integer division is written as //. Do not confuse it with ordinary division: 17 / 5 gives 3.4, but 17 // 5 gives 3.
Practise the June 2024 and 2025 Edexcel Computer Science papers question by question. Every question on the paper has its own set of BrainBerry flashcards and multiple-choice cards, testing the same content and skills, each with an explanation.
The cards are written by BrainBerry to match each question; they are not the exam board's own wording.
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