State the term multi programming
State the term multi programming.
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Multi programming:It is the technique of running various programs at a time by using timesharing.It permits a computer to do various things at same instant. It creates logical parallelism.The notion of multiprogramming is that the operating system keeps various jobs in memory concurrently. The operating system chooses a job from the job pool and begins executing a job, when such job requires waiting for any I/O operations the CPU is switched to other job. Therefore the main idea is that the central processing unit is never idle.
Illustrate the basic difference between the message and method in programming?
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Boolean expression: It is an expression whose outcome is of type Boolean, that is, gives a value of either true or false. The operators like && and || take Boolean operands and generate a Boolean outcome. The relational operators obtain operan
Pointer Arithmetic: C and C++ provide the ability to modify a pointer’s target address with arithmetic operations. This is used, for example, to index arrays. MyObject* P = ... Q : What is a Pipe Pipe : It is a linkage Pipe: It is a linkage between the two program components. One component responds as a source of data, and writes into the pipe. The second components act as a receiver (that is, sink) for the data and reads from pipe.
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