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Define the Main reason to encrypt a file Major reason to encrypt a file is secure it for transmission.
a) The barber shop has one barber, one barber chair, and n chairs for waiting customers, to sit on. If there are no customers present, the barber sits down in the barber chair and
How free-space is managed using bit vector implementation? The free-space list is implemented as a bit map or bit vector. Each block is shown by 1 bit. If the block is free, th
What is process control block? Every process is represented in the OS by a process control block. It has many pieces of information associated with an exact process.
What do you mean by best fit? Best fit allocates the smallest hole that is big sufficient. The entire list has to be searched, until it is sorted by size. This strategy creates
Many early operating systems regarded processes as different timesharing users. The process abstraction is a popular way to organize concurrent programs, but it is not the only cho
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List and discuss the various services provided by the operating system. Program execution - system capability to load a program into memory and to run it. I/O operatio
What is Two-level directory In the two-level directory structure every user has own user file directory (UFD). When a user jobs begins or a user logs in, the system's master fi
How does an operating system make multiprogramming possible by using single processor?
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