Page 22 - slides.dvi

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OS
.
.
Operating
.
control
CPU
Unique
Process
Process
Memory
Systems
Program
—
block
maintains
state
process
Processes
scheduling
counter
Control
(PCB):
&
&
management
information
(Running,
identifier
CPU
Block
about
accounting
Ready,
information
registers
every
etc.)

information
process
Program Counter
Other Information
Other CPU Registers
in
Current Process State
a
CPU Scheduling Information
(e.g. list of open files, name of
Refs to previous and next PCBs
Process Number (or Process ID)
Memory Mangement Information
time used so far, devices owned)
executable, identity of owner, CPU
data

structure

called

a

process

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