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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.
Q. Define Interrupt Processing? On completion of execution of an instruction machine checks whether there is any pending interrupt request for interrupts which are enabled. If
Which of the following is the fastest logic ECL, TTL, CMOS or LSI ? Ans. The fastest logic is ECL.
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Q. Show Sample Instruction Format of MIPS instruction? Early MIPS architectures had 32-bit instructions and later versions have 64-bit implementations. The first commercial
Q. Instruction set for IA - 64 architecture? Instruction set: Architecture gives instructions for multimedia operations as well as floating point operations. Itanium supports
Q. Layers of Distributed System architecture? Layers of Distributed System architecture are: Presentation Layer is actual user interface. This layer receives input and
What do you understand by E-cash? E-Cash Ecash is a cash which is showed by two models. One is the on-line form of e-cash which permits for the completion of all types of
Program to calculate the value of the series 1+x+x2+x3+.... +xn. Read the values of ''x'' and ''n'' from the keyboard.
Q. What do you mean by Internet? Ans: Internet is a network of networks or collection of networks. Several networks such as WAN and LAN connected through suitable hardware an
Printers are devices which put ink on paper in a controlled manner. They manually produce photographic images orreadable text. Printers have gone through a large transition in tech
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