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Multiprogramming
Multiprogramming means capability of several programs to simultaneously occupy a portion of the computer’s memory and compete for central processor time.
The CPU switches from one program to another as soon as it is idle due to input/output calls. Due to this, the utilization of CPU is optimized and CPU efficiency becomes very high compared to Batch Processing Systems.
Development of Personnel Computer Operating System: The next important breakthrough in computer use occurred in 1982, with the introduction of the IBM personal computer. The I
Write control sequence for adding the content of the memory location whose address is at memory location pointed by immediate number NUM to register R1. Assume the number NUM is pr
There are two methods to work with files, the first one is through file control blocks or "FCB" and the second one is through communication channels, also identified as "handles".
Choice of Medium: All the transmission channels discussed in the foregoing paragraphs can be used as point to point connections or as broadcast systems. Transmitting informati
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Characteristics of Artificial Intelligence: Artificial Intelligence is not an easy science to describe, as it has fuzzy borders with simulation mathematics, computer science t
Diskless workstations: Most people assume that the operating system is stored on a disk that is connected directly to the computer, but this is not necessarily true. If the
Suppose that you are writing a stored procedure to record new purchases. Suppose that you know that while your procedure is running, another stored procedure that records shipment
Keystroke logger and Data-stealing: Keystroke loggers: This is a program, once installed on the system, which intercepts the keys when entering the password or the Credit Ca
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