Cambridge AS & A Level Computer Science
16.1Purposes of an operating system (OS)
Purposes of an operating system (OS) in Cambridge AS & A Level Computer Science: what the syllabus expects you to know, the learning objectives and how to practise.
Subtopic44 practice questions2 lessons
Learning objectives
What the syllabus expects you to be able to do.
- 16.1.1Explain how an OS maximises resource use and the user interface hides hardware complexity.
- 16.1.2Explain process management: multi-tasking, process states, scheduling routines and interrupt handling by the kernel.
- 16.1.3Explain paging, segmentation, virtual memory, page replacement and disk thrashing.
Lessons
- Full access
Memory management: paging, segmentation and virtual memory
60 min
- Full access
Process management and scheduling
60 min
Join to read every lesson, or see what Full access includes.
Sample question
A sample question on this topic. Answer it, check it, then read the worked answer.
Turn Purposes of an operating system (OS) into a strength.
Practise with instant marking, see your mastery grow and get a study plan built around your exam date.