OCR J277/02 • Paper 2

Mr. McKenzie's CS Simulator

Computational Thinking, Algorithms & Programming
OFFLINE — NO INTERNET REQUIRED
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Real OCR J277/02 past-paper style questions across all topics. Mark scheme keyword matching gives instant detailed feedback on every answer.

Topics covered
AlgorithmsDesign & pseudocode
SearchingLinear & binary
SortingBubble, merge, insertion
Trace TablesStep-by-step traces
SelectionIF / ELIF / ELSE
IterationFOR / WHILE loops
Arrays & 2DIndex & traversal
Stringslength, upper, left
ValidationRange, type, format
Binary & HexConversion & ops
Logic GatesAND / OR / NOT
SubroutinesFunctions & procedures
DecompositionComputational thinking
Defensive DesignValidation & auth