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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.
How can you manipulate the presentation and attributes of interactive lists? ---Scrolling by Interactive Lists. ---Setting the Cursor from within the Program. ---Changing
Used to interrupt CPU normal implementation routine and to get its attention .Mostly generated by an external devices, timers, counters...etc
Question : a) E-mail is a common feature nowadays in IT. What does it stands for and what is it used for? b) Briefly describe four advantages of using the electronic mail s
quick sort working
We use VuGen to make a Vuser script by recording a user performing typical business processes on a customer application. VuGen makes the script by recording the activity among the
State in brief about the proxy server A proxy server also helps a lot since it hides the real IP addresses of users requesting resources outside the firewall. Finally, the
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What are the Input devices Various devices are available for data input on graphics workstations. Most systems have a keyboard and one or more additional devices specially desi
This is a huge collection of computational algorithms ranging from elementary functions like sum, sine, cosine, and difficult arithmetic, to more sophisticated functions like matri
Q. Explain salient points about indirect addressing? A number of salient points about this scheme are: In this addressing scheme effective address EA and contents of th
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