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Describe the following allocation algorithms:
a. First fit
b. Best fit
c. Worst fit
a. First-fit: search the list of available memory and allocate the first block that is big enough.
b. Best-fit: search the whole list of available memory and allocate the smallest block that is big enough.
c. Worst-fit: search the whole list of available memory and allocate the largest block.
What is the hardware support required to implement paging? Each operating system has its own techniques for storing page tables. The majority allocates a page table for each pr
SEGMENTATION In a memory management system that is properly a programmer views a program to be collection of program components called as segments . Every segment is a logical
MEMORY MANAGEMENT USING BIT MAPS In this memory is separated into different allocation units each of some particular size(a few bites).consider every space of size 4k. A
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What is busy waiting? The repeated implementation of a loop of code while waiting for an event to happen is known as busy-waiting. The CPU is not engaged in any actual producti
Perform alpha-beta pruning on the following tree. Put an "X" over each node that is pruned. Put the final value next to all other nodes. Indicate which action MAX should take: to B
What is a two state process model? At any time a process is being implementing by a processor or not. Therefore a process may be in Running or not running state. When an Ope
What are the three main activities of an operating system in regard to secondary-storage management? a) Free-space management. b) Storage allocation. c) Disk scheduling.
Enhanced Second chance algorithm In this a modify bit is as well used. Now if the ordered pair of reference and modify is (0,0) neither recently used nor modified - the best
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
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