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Process Control Management:
A process is an executing program. It is considered the standard unit of work within a computer system. Every executing program is treated as a process. This includes not only application programs, but the programs within the operating system itself. The process concept considers the program, together with the resources that are assigned to it, including memory, I/O devices, time for execution, and the like. When admitted to the system, each program is assigned memory space and the various resources that it initially requires to complete its work. As the process executes, it may require additional resources, or it may release resources that it no longer needs.
The operating system performs various functions with processes, including scheduling and memory management, by providing the various services. Processes must often be synchronized, so that processes sharing a common resource do not step on each other's toes by altering critical data or denying each other needed resources.
Systems also provide communication capability between different processes. Processes may cooperate with each other by sending messages back and forth using interprocess messaging services.
classify computer system according to capacity. how they are different from computer according to the classification of technology.provide the comparative study also.
RANDOM ACCESS MEMORY (RAM): The RAM-type memory will allow data to be written into it, as well as read from it. With very few exceptions, RAMS lose their contents when the powe
Constant: In contrast to a variable, which is used as identifier for a value and which can change, constants are identifiers that are used for values, which cannot be changed.
Bootstrap loader: The critical programs are loaded into memory by the bootstrap loader at start-up time and will remain resident as long as the computer is running. The bootst
How Much Insurance? Many financial experts advise that property owners should insure their homes or buildings for at least 80 percent of the amount it would cost to replace the st
What is CAI ? Explain it''s pitfalls.
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Simple Batch Systems: Early machines were very expensive, and therefore it was important to maximize machine utilization. To improve utilization, the concept of batch operat
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