IGCSE Computer Science 0478: Sub-systems and decomposing a problem
Students learn that every computer system is made of sub-systems and how to decompose a problem into inputs, processes, outputs and storage, and why that makes it easier to solve.
One content description from the full IGCSE Computer Science 0478 — 7b Decomposition and Sub-systems journey. All 14 modules below are in that journey too, with the same content — add just these to a class, or the whole strand.
Modules (14)
1
Digital system
2
Sub-system
3
Sub-systems made of further sub-systems
4
Input, process, output and storage
5
Decomposing a problem into sub-problems
6
Component parts of a problem: inputs
7
Component parts of a problem: processes
8
Component parts of a problem: outputs
9
Component parts of a problem: storage
10
Splitting a scenario into inputs, processes, outputs and storage
11
Writing an IPO chart for a program
12
Why decomposition helps: easier to understand and solve
13
Why decomposition helps: testing each part separately
14
Why decomposition helps: team work and reuse
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