AQA 8525 3.4.3: Software classification
The free BugBot lesson that teach this point, a robot to try it on, and the past-paper questions that test it.
What it covers
When you run a program, you never tell the processor which memory to use, how to talk to the camera, or how to share time with the other programs running. The operating system does all of that. This lesson looks at what an operating system does, then at utility software, the programs that keep a computer running well.
- What an operating system does
- Sharing the processor
- Utility software
Or do it in the simulator, with tasks that mark themselves
Lessons that teach it
- F9.9 Operating systems and utilities Logic and computer systems
What an operating system does, scheduling, and utility software.
Try it on a robot
The task from F9.9 Operating systems and utilities, running here. Change the program and press Run.
The specification is AQA's own document; this page says which of our lessons teach point 3.4.3 and is not endorsed by the board.