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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. What is Data link layer? Data link layer: data link layer is responsible for transmitting a group of bits between adjacent nodes. Group of bits is termed as frame. Network
Give an intuitive explanation of why the maximum throughput, for small beta, is approximately the same for CSMA slotted Aloha and FCFS splitting with CSMA. Show the optimal expecte
What is an abstract class? Please, expand by examples of using both. Explain why? Abstract classes are closely related to interfaces. They are classes that cannot be instanti
There are various approaches to the classification of Computer Networks. One such classification is based on distance approach. Networks can be classified into LAN, WAN and MAN net
Swing is a GUI toolkit for Java. It is one kind of the Java Foundation Classes (JFC). Swing haves graphical user interface (GUI) widgets such as text boxes, buttons, split-panes, a
making a er diagram insturction
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Q. Illustrate working of Synchronous Counters? The main drawback of ripple counter is delay in changing the value. How? To understand this let's take a case when state of rippl
With the help of a neat diagram, explain the working of a weighted-resistor D/A converter. Ans Weighted Register D/A Converter: Digital input that has 4 bits
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