This deep dive supports UNISA COS1521 (Computer Systems: Fundamental Concepts) —
covering number systems and data representation, digital logic, CPU and memory,
operating systems, networks, algorithms, data structures and databases.
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Master how computers work — from number systems and digital logic to the CPU, memory, operating systems, networks, algorithms and databases. 10 lessons, each with a reading, quiz gate, assessment gate, and live coding challenges.
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Full Assessment
25 questions across all topics · AI feedback · Exam readiness report
Not attempted
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UNISA Past Paper Simulations
Practise with exam-style questions across all 4 parts
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Quiz Bank — Computer Systems practice questions
Multiple-choice and coding questions across all 10 lessons
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Code Sandbox
Write and run C++ to explore computer-systems concepts — live in the browser
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Structure & Memory Visualizer
Step through the stack and queue, binary search, the machine cycle and address translation — watch the structures move
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Capstone Project — Computer Systems Toolkit
One program that grows across the course: base converter → ALU → sort/search → record store
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My Progress & Mastery Heatmap
See green/amber/red across all 10 lessons · run a 10-question diagnostic