Edexcel GCSE Computer Science · 1CP2
Specification 6.4.3, 6.4.4 · Paper 2
Revise: Data Validation TechniquesThe Boolean flag starts as
False. It becomesTrueonly after all checks pass, allowing the loop to finish. An unsuccessful attempt leaves itFalse, so the program requests another code.- Revise: Authentication Mechanisms
A variable holding
TrueorFalseto track a condition and help control a program.