Flashcards for Edexcel GCSE Computer Science Input/output, covering the key terms, algorithms and programming syntax you need to recall for Paper 1 and Paper 2. 20 cards drawn from Accepting and responding to user input, Reading and writing CSV text files, Implementing validation, and Implementing authentication, matched to the Edexcel GCSE Computer Science (1CP2) specification. Recall questions account for roughly 30% of marks at GCSE Computer Science, so these target the marks you can secure before the paper starts.