A museum assigns every artefact in its collection a catalogue number stored as a three-digit hexadecimal value. The artefact currently on display has the catalogue number 2F9. [7 marks]
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Practice IB Computer Science (First Exam 2027) Topic A1.2 Data Representation and Computer Logic with authentic exam-style questions for both SL and HL students. This question bank focuses on the exact syllabus content for A1.2 Data Representation and Computer Logic and mirrors Paper 1, 2 style where relevant.
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A museum assigns every artefact in its collection a catalogue number stored as a three-digit hexadecimal value. The artefact currently on display has the catalogue number 2F9. [7 marks]
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A stadium turnstile releases when a valid ticket is presented and the gate is not locked. a logic diagram for this system, using T for a valid ticket and L for the gate being locked.
A railway signal interlock stores a status byte as the binary number 10110010. the denary equivalent of this number.
A bell tower controller stores the denary value 45 as an 8-bit binary number. the steps used to produce this binary value.
A drawbridge control circuit has inputs A, B and C and produces output Q according to the Boolean expression Q equals A AND (B OR NOT C).
a truth table for this expression.