Memory Management

Segment provides multiple address spacesAddress space may not be of same sizeMaintained in the segment descriptor table

PROGRAM sequence of machine instructions stored in main memory and executed by CPUstore data in the registercompute sum of two valuespush or pop values from stackPROCESS/TASK is set of resources created and maintained by the O/S to execute the programPROCESS containesprogram with initial code and dataprivate address space (actually virtual address pointing to the physical address)system resourcesunique identifier called PIDregister info about the processstack about the variablesStates of a PROCESSrunning, blocked, ready

Segmentation

PROGRAM