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USER-LEVEL THREADS (ULT)
In this level the kernel isn't aware of the existence of threads -- All thread management is complete by the application by using a thread library. Thread switching doesn't require kernel mode privileges no mode switch and scheduling is application specific.
Q. If magnetic hard disks eventually have the same cost per gigabyte as do tapes will tapes turn into obsolete or will they still be needed? Describe your answer. Answer: Tap
Q. What are the tradeoffs concerned in rereading code pages from the file system versus using swap space to store them? Answer: If codes pages are accumulate in swap space th
How File record length should be chosen File record length should be selected to match the data characteristics
Q. We have stressed the require for an operating system to make efficient use of the computing hardware. When is it suitable for the operating system to forsake this principle and
Multithreading - Operating systems that permit different parts of a software program to run concurrently. Operating systems that would come into this category are: Linux UNI
Define the Global vs. local variables It is also important to discuss the scope of resources being granted to the application program. Variable scoping is defined as the acces
What is File Allocation? The structure that offers the FAT file system its name is the file allocation table . In order to know what this important table does, you should fir
bootstrap
Dynamic scheduling : The number of thread in a program may be changed during the course of operation. Dynamic priority scheduling is a kind of scheduling algorithm in which the pr
Long term scheduler calculates which processes are admitted to the machine for processing. It accepts the degree of multiprogramming. Once accepted, a job converts a process.
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