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Q. What are the major differences between operating systems for mainframe computers and personal computers?
Answer: In general operating systems for batch systems have simpler requirements than for personal computers. Batch systems don't have to be concerned with interacting with a user as much as a personal computer. Consequently an operating system for a PC must be concerned with response time for an interactive user. Batch systems don't have such requirements. A pure batch system as well may have not to handle time sharing whereas an operating system must switch rapidly between different jobs.
What are the different files attributes? File name:-it's the name of the file. It's the name with which the user identifies. Identifiers:-it's created when a file is created
What are the advantages and disadvantages of multithreading? Advantages : Since by multithreading multiple executions are carried out in the same process environment t
Compare between the one and two-dimensional memory organizations in terms of the memory structure, advantages, and disadvantages. Which approach would better support the needs o
Q. Why is it complicated to protect a system in which users are allowed to do their own I/O? Answer: In earlier chapters we identified a distinction among kernel and user mod
Overlay structured program: A program consisting of overlays is referred as overlay structured program in which an overlay is a part of program which has similar load origin as
Explain Deadlock Every process in a set of processes is waiting for an event which only a process in the set can cause.
LRU approximation page replacement In this we utilize the reference bit associated with the page entry to choose a page to be removed. The various algorithms used for the imp
Using pages makes it easier to manage the whole memory, avoiding excessive fragmentation and waste. As an analogy, think of Tetris, but with only square blocks: it is relatively ea
Windows admin need it Project Description: We want to protect an executable on operating system level , so the process could be visible among all users while the executable r
Explain Belady's Anomaly? Also called FIFO anomaly. Usually, on enhancing the number of frames allocated to a process virtual memory, the process implementation is faster, beca
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