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process (Process element (Identifier, Stste, Priority, Program counter,…
process
Process element
Identifier
Stste
Priority
Program counter
Memory pointers
Context data
I/O status information
Accounting information
What is Process
A program in execution
An instance of a program running on a computer
The entity that can be assigned to and executed on a process
a unit of activity characterized by a single sequential thread of execution
Process states
Two-ststte process model
Creation and termination
Five-stste model
Suspended processes
Processes and Threads
Resource Ownership
Scheduling/Execution
Single Threaded Approaches
Multithreaded Approaches
Process Control Block
Contains the process elements
Interrupt a running process