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Explain the various file types
A common technique for executing file types is to contain the type as part of the file name. The name is split into two parts - a name and an extension, usually divided by a period character. The file with a .com, .exe, or .bat extension can be implemented. Assembler expects source files to have an .asm extension.
Process Description A process in UNIX is a somewhat complex set of data structures that provides the operating system with all of the information necessary to dispatch and manag
Write a short note on disk structure Modern disk drives are initiate as large one dimensional array of logical blocks where the logical block is the smallest unit of transfer.
What is Directory? The device directory or simply called as directory records information-such as name, location, size, and type for all files on that certain partition. The d
What is named pipes?
What is a semaphore? A semaphore 'S' is a synchronization tool which is an integer value that, apart from initialization, is accessed only by two standard atomic operations; w
Can a direct access file be read sequentially? Explain. Yes. Keep a counter, cp, initially set to 0. After reading record cp, increment cp.
define semaphore. how can we use semaphore to deal with n-process critical section problem.
Additional-reference-bits algorithm We can keep an 8-bit byte for every page in a table in memory. The operating system shifts the reference bits right 1 bit, discarding the lo
The term ‘page traffic’ explains Page traffic’ explains the movement of pages in and out of memory.
what is independent process? distinguished between independent process and co-operating process
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