Domain of Protection
A Computer System is a collection of:
- Processes
- Objects, each of which has a unique name, and can be accessed through a well-defined set of operations.
- Hardware objects: CPU, memory segments, printers, disks.
- Software objects: files, programs, semaphores.
Protection domain:
- An abstract notion.
- A process operates within a protection domain.
- The domain specifies the resources that the process may access.