Operating Systems
Software in the Background


Operating System


Primary Operating System Functions


The MS-DOS Operating System


Booting


DOS and Disk Drives


Operating Environments: The User Interface


Windows File Management


Windows 95


Network Operating Systems


Resource Allocation


Time-Sharing


Memory Management


Memory Management


The UNIX Operating System


Multitasking

Execution of two or more programs concurrently (not simultaneously ) - the CPU processes part of one job, then part of the next, etc..