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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.
Explain briefly, why dynamic RAMs require refreshing? Ans: Due to the charge's natural tendency to distribute itself in a lower energy-state configuration that is, the charg
about nano memory
Q. Explain about Hybrid model? Hybrid models are normally tailor-made models suiting to particular applications. In fact these fall in category of mixed models. These type of a
Mainframe computer Mainframe computers are very large, often can fill an entire room. They can store a large amount of information, can execute many tasks at the same time, can
What happens to logic after synthesis, which is driving an unconnected output port that is left open (, that is, noconnect) during its module instantiation? An unconnected out
What is a Match Code? Match code is a tool to help us to find for data records in the system. Match Codes are an proficient and user-friendly search aid where key of a record i
Enumerate the Design reusability of VHDL VHDL. Functions and Procedures may be placed in a package so that they are available to any design-unit which wishes t
IP specified that datagram can arrive in a different order than they were sent. If a fragment from one datagram arrives at a destination before all the segments from a previous dat
Cut-off Search: By using a minimax search, all we have to do is program, in a game playing situation our agent to look at the whole search tree from the current state of the
Q. Show the Comparison of ASCII and EBCDIC? EBCDIC is an easier to employ code on punched cards due to BCD compatibility. But ASCII has some of major benefits on EBCDIC. These
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