IB Computer Science Topic A1.1 Computer Hardware and Operation Questionbank (SL/HL) | RevisionDojo

IB Computer Science Topic A1.1 Computer Hardware and Operation Questionbank (SL/HL) | RevisionDojo

Practice IB Computer Science (First Exam 2027) Topic A1.1 Computer Hardware and Operation with authentic exam-style questions for both SL and HL students. This question bank focuses on the exact syllabus content for A1.1 Computer Hardware and Operation and mirrors Paper 1, 2 style where relevant.

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Paper

Level

Question 1

SLPaper 1

An automotive company is designing an Engine Control Unit (ECU) that must process sensor data continuously.

Analyze the following interrupt priority table:

Interrupt Source	Priority Level	Response Time Required
Engine Temperature	1 (Highest)	$< 5 \text{ ms}$
Fuel Injection	2	$< 10 \text{ ms}$
Speed Sensor	3	$< 20 \text{ ms}$
Dashboard Display	4 (Lowest)	$< 100 \text{ ms}$

When multiple interrupts occur at the same time, which interrupt should the CPU handle first?

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