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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.
Differentiate between AT and XT computer system? Ans XT -> Extended and AT->Advanced Technology Some differences between PC and XT include the type of power supply initia
Q. Basic working of Hard Disk Drive? This is one of the components of today's personal computer having a capacity of order of quite a lot of Giga Bytes and above. A magnetic di
Different systems that can participate in grid computing as platform are: Windows 3.1, 95/98, NT, 2000 XP , DOS, OS/2, , supported by Intel ( x86); Mac OS A/UX (Unix) sup
Explain the working of Dynamic RAM? A plain piece of hardware called a DRAM controller can be used to make DRAM behave more like SRAM and the job of the DRAM controller is to p
Which scheduler selects processes from secondary storage device? Ans. Medium term scheduler selects processes from secondary storage device.
What is self reference? The Turing machine that ignores its input and prints out a copy of its own description, we call this as SELF. There is a computable function q: €*€*,
How different are interface and abstract class in .Net? Abstract classes cannot be instantiated it can have or can't have abstract method basically known as must inherit as th
What is a co-processor? What is its use in a typical microprocessor based system. 8087 NDP (numerical data processor) is also called math co-processor which is used in parallel
What is time slicing? With this technique each program runs for a short period known as a time slice, and then another program runs for its time slice and so on.
Redefines clause is used to permit the similar storage allocation to be referenced by dissimilar data names.
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