OPERATING SYSTEMS FOR COMPUTERS
COMPUTER OPERATING SYSTEMS
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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secondary storage memory
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virtual memory
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reading and writing memory
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cache memory
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Detailed explanation-1: -Swap-in: A swap-in process in which a process moves from secondary storage / hard disk to main memory (RAM). Swap out: Swap out takes a process out of the main memory and places it in secondary memory.
Detailed explanation-2: -In the default Windows configuration, 2 gigabytes (GB) of this virtual address space are designated for the private use of each process, and the other 2 GB is shared between all processes and the operating system.
Detailed explanation-3: -In the Paging method, the main memory is divided into small fixed-size blocks of physical memory, which is called frames. The size of a frame should be kept the same as that of a page to have maximum utilization of the main memory and to avoid external fragmentation.
Detailed explanation-4: -Compaction is a memory management technique in which the free space of a running system is compacted, to reduce fragmentation problem and improve memory allocation efficiency. Compaction is used by many modern operating systems, such as Windows, Linux, and Mac OS X.