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Computer Science IGCSEPDF 53
142 pagesrevision 46930
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Runs
Dependenc
y
In background
Essential for operation
Understand System vs Application Software.
Know each OS function clearly.
Recall examples of utility software and translators.
Define interrupts and buffers with examples.
Identify IDE features and their uses.
Link embedded systems to real-time OS.
Under user control
Optional, user-installed
Definition: Software built into specialized hardware for dedicated control.
Examples: Washing machines (cycle control), Printers (queue handling), Routers (packet
routing).
Features: Small memory footprint, optimized for speed, real-time performance, minimal user
modification.
4.10 Exam Tips
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4.9 System Software in Embedded Systems
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