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What is an operating system and what are the different types of operating systems? Operating System An Operating System or OS is a software program that allows the compute
How is memory management done using bit maps? A bit map is here in this we signify the bit value as 0 or 1. 1-hole 0-process In this we are able to represent the proce
What are the objectives for a file management system? To meet the data management wants and requirements of the user, which embrace storage of data and the ability to
What is the use of FIFOs in client-server applications
Compare contiguous-memory allocation with pure paging in the following aspects: 1. In support of dynamic memory allocation: most systems allow programs to allocate more memory t
Define UNIX device driver The UNIX device driver is structured into two halves called top half and bottom half
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.
In the mean while the fork() system call the Kernel creates a copy of the parent process's address space and adds it to the child process. But the vfork() system call do no
Write a note on the usage of semaphores. Semaphore is a synchronization tool and it is a variable having integer values. It is accessed only by two standard atomic operations w
Synchronization serves two purposes: 1) to ensure safety for updates on shared data (e.g. to avoid races conditions), and 2) to coordinate and order actions taken by threads (e.g.
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