Copyright © 2001
Qusay H. Mahmoud
4
Tasks and Processes
lA
task is the execution of a sequential program (or a sequential
program within a concurrent program)
lA
process is used in Operating Systems (OS) as a unit of resource allocation for
CPU and memory
lA
traditional OS process has a single thread of control (i.e. no internal
concurrency)
lModern
OS allow a process known as a heavyweight process (i.e. with multiple
threads of control – concurrency within the process)