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Is to read things on the computer or to hold a paticular document
Without RAM, a CPU can not execute any code at all, or access any data. The Operating System must be stored in RAM or the CPU can not access the code necessary to run the Operating System. Also, files that the user is working on must be stored in RAM or they are not accessible.
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DevinRAM is the exact equivalent in a human being to short-term memory. In working with anything, you are relying constantly on your short-term memory. The info your are "keeping close and handy". This is what RAM does in the computer. Imagine writing a letter, and at the end of each sentence, you have no recall of what the previous sentence - or the one before that - was. Short term memory keeps you on track. On the computer, that is what RAM does. You don't have to start over, or find it again - it's right there.
All software, when run, resides in the random access memory (RAM) of a computer. Memory requirements are defined after considering demands of the application, operating system, supporting software and files, and other running processes. Optimal performance of other unrelated software running on a multi-tasking computer system is also considered when defining this requirement.
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What are the four basic modules of operating system might be required on a computer system where there is multiprogamming?
The system consists of CPU, Main Memory, I/O Module, and System Bus.
What is virtual memory and how the system controls the situation in the absence of it?
What is virtual memory and how the system controls the situation in the absence of it?
Some early computers protected the operating system by placing it in a memory partition that could not be modified by either the user job or the operating system itself. Describe two difficulties?
The data required by the operating system (passwords, access controls, accounting information, and so on) would have to be stored in or passed through unprotected memory and thus be accessible to unauthorized users. Akmal Waheed waheed007@gmail.com
What is the use of virtual memory?
Virtual memory is used to increase the size of working memory in the system main memory by using the locations in secondary storage such as harddisk.
What are four resources required for process execution?
various CPU registers where process need to be stored for execution for running state.process priority and other scheduling information which is required to schedule the information of page table.memory limitssegment table depending on the memory used by the operating system
