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Second-Chance algorithm
When a page has been selected, we inspect its reference bit. If the value is 0, we proceed to replace this page. If the reference bit is set to 1, though, we give that page a second option and move on to select the next FIFO page.
wat are the commands used for creating the file hierarchy
What are the differences between process and thread? The fundamental difference between a process and a thread is that a process has an entire copy of the program to itself and
Q. Why do several systems store the operating system in firm ware and others on disk? Answer: For certain devices such like handheld PDAs and cellular telephones a disk with
Explain external fragmentation? External fragmentation is the process where the free space and the space still available for use, in a piece of storage become separated into ma
Explain what ISAM is. Indexed sequential access method. The file is stored in sorted order. ISAM has a master index file, indicating in what part of another index file the key
What is a Process Control Block? Every process in the operating system is represented by a process control block as well called a task control block. It contains several pieces
What factors are involved in choosing the host operating system?
a summary of what operating system do
Ask question #Minimuexplain the programable clock modes in a computer system m 100 words accepted#
Define what an assembler is An assembler is machine dependant.
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