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Explain Readers-writers problem.
Readers-writers problem: Assume that a data object (as a file or record) is to be shared between several concurrent processes. The readers are processes which are interested in only reading the content of shared data-object. Writers are the processes which may need to update (i.e. to read and write) the shared data object. No adverse effects will result, if two readers access the shared data object simultaneously. Though, if a writer and some other process (either a writer or reader) access the shared object concurrently, anomaly may arise. To make sure that these difficulties do not occur, writers are needed to have exclusive access to the shared object. Such synchronization problem is referred to as the problem of readers-writers.
Write the factors considered in designing an I/O subsystem? 1. Data Location: Device selection, address of data within device ( track, sector etc) 2. Data transfer: Amount
Explain the difference between a function declaration and function definition. Function declaration and Function definition: A function declaration having the name of th
Accumulator is the register in which Arithmetic and Logic calculations are completed.
In a single stage network: (A) There is no redundancy (B) There is redundancy (C) Alternative cross points are available (D) Alt
What is A cooperation model A cooperation model defines the way interdependencies are established by cooperative interactions. We recognize two basic roles services can play: c
examples of virtual memory
Q. Logic diagrams for same Boolean expression? The expression F can be simplified using Boolean algebra. The logic diagram of simplified expression is drawn in fig (b)
Does it makes sense for two domain servers to contain exactly the same set of names? Why or why not? Yes. This is very advantageous for 2-domain servers having same set of name
Convert the following integers into their numerical equivalents in the indicated bases. Be sure to use the correct number of significant figures for each case and show how the corr
What is asynchronous transmission An asynchronous transmission technique used in many interactive terminals employ special bits. With this method each character consists of thr
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