Show understanding of how an OS can maximise

the use of resources

Describe the ways in which the user interface hides

the complexities of the hardware from the user

Show understanding of process management

Show understanding of virtual memory, paging and

segmentation for memory management

The concept of multi-tasking and a process

The process states: running, ready and blocked

The need for scheduling and the function and

benefits of different scheduling routines (including

round robin, shortest job first, first come first served,

shortest remaining time)

How the kernel of the OS acts as an interrupt

handler and how interrupt handling is used to

manage low-level scheduling

The concepts of paging, virtual memory and

segmentation

The difference between paging and segmentation

How pages can be replaced

How disk thrashing can occur