January 2019
Beginner to intermediate
745 pages
21h 6m
English
Content preview from Computer Science Illuminated, 7th Edition
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10.3 Process Management
Another important resource that an operating system must manage is the use of the CPU by individual processes. To understand how an operating system manages processes, we must recognize the stages that a process goes through during its computational life and understand the information that must be managed to keep a process working correctly in a computer system.
The Process States
Processes move through specific states as they are managed in a computer system. That is, a process enters the system, is ready to be executed, is executing, is waiting for a resource, or is finished. FIGURE 10.9 depicts these process states. In the figure, each box represents a state a process might be in, and the arrows indicate how and ...
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