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Explain about file allocation methods?
The main problem in direct-access nature is how to assign space to these files so that disk space if utilized effectively and files can be accessed rapidly. Three main methods are used; they are contiguous, linked and indexed.
Q. How would utilize of a RAM disk affect your selection of a disk-scheduling algorithm? What factors would you require to consider? Do the similar considerations apply to hard-di
In which page replacement policy Balady’s anomaly occurs? FIFO (First in First Out)
Define the DosExecPgm Functions used in the OS/2 DosExecPgm (objBuffer, objLen, flags, cmdLine, env, &resultCode, execName) DosExecPgm function is designed to load an execut
Swapping : Whole process is moved from the swap machine to the main memory for execution. Process size must be equal or less than to the used main memory. It is easier to exe
Explain Threads for Executing Concurrent Application Code The thread has been introduced in many operating systems as an efficient mechanism for executing concurrent applicatio
What are the disadvantages of linked allocation? The drawbacks are a. Used only for sequential access of files. b. Direct access is not supported c. Memory space neede
idle thread The special thread a dispatcher will run when no ready thread is found. The primary purpose of the idle process and its threads is to remove what would otherwise b
Q. What is the use of system programs? Answer: System programs are able to be thought of as bundles of useful system calls. They provide fundamental functionality to users so
Binary number based systems Binary is a ' base 2' number system, only two numbers exist namely '0' and '1'. Conversion from binary to base 10 is easy if the number column techn
You have a system with two primary workloads. One performs sequential access to a set of large files, the other performs small, independent, random reads to a separate set of large
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