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What are User threads
User threads are supported above the kernel and are executed by a thread library at the user level. Thread creation & scheduling are done in the user space, without kernel intervention. Thus they are fast to create and manage blocking system call will cause the whole process to block
Define multi programming? Many operating systems are designed to enable the cpu to process a number of independent programs concurrently. This concept is known as multi progra
Describe the operation of parallel in parallel out (PIPO) shift register. Ans: Parallel In Parallel Out: By the name suggests, in parallel in parallel out that is a
Ethernet 10 Base 2 is an example of network topology. (A) Bus (B) Ring (C) Star
Give the decription of user case A use case is a description of the set of the sequence of actions which a system performs to produce an observable result which is of a value t
The for Loop The for loop works well where the number of iterations of the loop is known before the loop is entered. The head of the loop consists of three parts separated by s
Device Drivers in UNIX, MS-DOS and Windows System Though device drivers are in effect add-on modules they are however considered to be part of system because they are closely i
DATAFLOW COMPUTING A substitute to the Von Neumann model of calculation is dataflow computation model. In the dataflow model, control is tied to flow of data. Order of instruct
Identify the different classes of grammar. Explain their characteristics and limitations. As proposed through Noam Chomsky that Chomsky hierarchy contains the subsequent level
What are the various connectivity options available to Internet Subscribers? Internet Connectivity Options: Internet access is perhaps one of the most admired services that
What is the basic approach of page replacement? If no frame is free is available, find one that is not currently being used and free it. A frame can be freed by writing its co
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