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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 bit map is here. In this we represent the bit value as 0 or 1.
1-hole
0-process
In this we are able to represent the process and hole separately.
One line of this bit map will have eight spaces
Define deadlock. A process requests resources; if the resources are not available at that time, the process enters a wait state. Waiting processes might be never again change s
What is a path name? A pathname is the path from the root by all subdirectories to a specified file. In a two-level directory structure a user name and a file name explain a pa
1. Draw a schematic diagram of a CMOS inverter and explain its operation. 2. Draw schematic diagrams of CMOS NAND and NOR gates, and explain their operation. 3. Explain what
with the aid of diagrams describe the following OS structure monolithic,layered and client server.
Define swapping. A process requires being in memory to be executed. Though a process can be swapped temporarily out of memory to a backing store and then brought back into memo
Process termination A process terminates when it finishes implementing its final statement and asks the operating system to delete it by using the exit system call. At that tim
How is memory management done using linked lists? Each one node of the l list will have 4 fields as follows 1-this tells whether it s a hole or a process 2-starting ad
Q. In a disk jukebox what would be the result of having more open files than the number of drives in the jukebox? Answer: Two bad results could result. One likelihood is star
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diffenciet between least recently used and not recently used
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