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Q. Define Point-to-point Communication?
The simplest form of message is a point to point communication. A message is sent from the transmitting processor to a receiving processor. Message passing in point-to-point communication can be in any 2 modes: asynchronous and synchronous. In synchronous transfer mode the next message is sent just after the acknowledgement of delivery of the last message. In this mode sequence of messages is managed. In asynchronous transfer mode no acknowledgement for delivery is needed.
Q. Physical characteristics and access mode of disk drive? Access Time: Access time is time needed between requests made for a read or write operation until the time data are
What are the drill-down features provided by ABAP/4 in interactive lists? ABAP/4 gives some interactive events on lists such as AT LINE-SELECTION (double click) or AT USER-COM
What is application software? Give example. Application programs are usually written in a high level programming language, in which the programmer states mathematical or text p
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What is multiprogramming or multitasking? The operating system manages the concurrent implementation of several application programs to make the best possible uses of computer
What is Double entry - Verification In this approach, data is entered twice (using two different people); data is only accepted if both versions match up. Generally used to ve
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Explain how the Web enables effective collaborative computing. Discuss the similarities and differences among WebEx, Microsoft NetMeeting and Novell Groupwise software (in less tha
Draw and illustrate the block diagram of DMA controller. Also discuss the various modes in which DMAC works. Direct memory access (DMA) is a process in that an external device
Q. Describe the External Users of system? External Users: Modern information systems are now reaching beyond the boundaries of traditional business to involve customers and o
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