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All components of computer communicate with processor by the system bus. Which means I/O devices required to be attached to system bus. But I/O devices aren't connected directly to computer's system bus. In its place they are attached to an intermediate electronic device interface known as a device controller that in turn is attached to system bus. Therefore a device controller is an interface between a system bus and an I/O device. On one side it knows how to communicate with I/O device associated to it and on the other it knows how to communicate with computer's CPU or processor and memory via the system bus.
Cathode Ray Tube Technology (CRT) CRT is an analog device that is used by a digital device - computer. The interface between these two devices is described. The major component
Question: Logical User-Centered Interactive Design Methodology is a methodology that identifies six clear stages to help in software development while keeping the user in mind.
Which is more efficient, a switch statement or an if else chain? Ans) The differences, if any, are likely to be small. The switch statement was designed to be efficiently impl
Hardware Implementation for signed-magnitude data When multiplication is implemented in digital computer, we change process lightly. Here, in place of providing registe
Objectives After going through this unit, you will be able to : Tell historical facts of parallel computing; Can explain the essential concepts of the discipline, e.g.
Which loader is executed when a system is first turned on or restarted? Ans. Bootstrap loader executed while a system is first turned on or restarted.
Disadvantage and Advantage of mutual-exclusion implementation with semaphores. Disadvantage: Mutual-exclusion solutions specified by semaphores require busy waiting. Tha
different locking techniques
Is it possible to pass data to and from include programs explicitly? No. If it is needed to pass data to and from modules it is needed to use subroutines or function modules.
Page fault frequency in an operating system is reduced when the? When locality of reference is appropriate to the process so Page fault frequency in an operating system is redu
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