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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.
The bandwidth requirement of a telephone channel is (A) 3 KHz (B) 15 KHz (C) 5 KHz (D) 25 KH
What is semaphores? A semaphore 'S' is a synchronization tool which is an integer value that, apart from initialization, is accessed only by two standard atomic operations; wa
what is ardiuno explain its working
Suppose that the working register W contains the value 0x4F, the register FSR contains the value 0x2B; the register with address 0x2B contains 0x2F and the instruction ADDWF INDF,
Signify this problem by means of: i. An Entity Relationship model; ii. Relational tables. Pete's Programmers is a firm which supplies part time staff on contract to organisat
create a stored procedure to debit a bank account user must enter account no. and amount to debited from account .the minimum balance in account should be 500. if the debited amoun
Name the two operations of stack A stack has only two operations and they are insertion and deletion of items. The operation insertion is called push (or push-down) as it can b
Q. Major problems associated in writing with cache memories? The data in main and cache memory can be written by processors or I/O devices. The major problems associated in wri
Expain the working of associative memory
What is page frame? An area in the main memory that can hold single page is called as page frame.
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