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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.
When should you stop testing? It is quite complex to determine as many modern software applications are so complex and run in like an interdependent environment that complete t
Discuss in detail Table management Techniques? An Assembler uses the subsequent tables: OPTAB: Operation Code Table consists of mnemonic operation code and machine langua
Compare memory mapped I/O with I/O mapped I/O. Memory Mapped I/O Scheme: In this scheme there is only one address space. Address space is stated as all possible addresses tha
What are types of firewalls? There are conceptually two types of firewalls as: 1. Network Level 2. Application Level
What are the Advantages of store program control (I) Easy to maintain (II) Easy to control (III) Wide range of services can be provided to customers (IV) Flexible
Explain the Acceptance and Request Determination As we have learned, much of the overhead in client-server interaction occurs in the CSInteface, either client or server. It is
Q. Define PVM library routines? In this segment we will give a short description of the routines in PVM 3 user library. Each PVM program must comprise the PVM header file 'pvm3
What are the features common in most of the websites Following general features must be found on most web sites in one form or another (this list is by no means exhaustive):
Why does Ethernet specify a minimum frame size. Ethernet frame gives a minimum frame size of 46 bytes. Whereas a data field of zero byte is legal, this causes a problem. While
Why is packet switching important? Give at least two reasons. Packet switching is significant due to the following two purposes: 1. A sender and the receiver require coordin
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