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Q. Explain working of Direct Memory Access?
In both programmed I/O and interrupt-driven processor is busy with executing input/output instructions and I/O transfer rate is limited by speed with which processor can test and service a device. What about a scheme that needs minimal intervention of CPU for input/output? These two types of shortcomings can be overcome with a more efficient technique called as DMA that behaves as if it has taken over control from processor. C Consequently the question is: why do we employ DMA interface? It is employed primarily when a large amount of data is to be transferred from I/O device to Memory.
Q. How a Procedure define in Assembly ? Procedure is defined within source code by placing a directive of form: PROC A procedure is terminated using: ENDP The
Q. Show Synchronous mode for point-to-point message passing? Synchronous mode: Transmitting can be started whether or not matching receive has been started, but transmitting w
What is CMP instruction Comparison instruction (CMP) is a subtraction that changes only the flag bits; destination operand never changes. A comparison is useful for checking th
What is state and state diagram? A state is an abstraction of values and links of an object. Set of values and links are grouped together into a state according to the group be
Describe the term- System analyst Design Once analysis has taken place and systems analyst has some idea of the scale of problem and what needs to be done, subsequent stage is
Global and Local Variables Global variables: The features are as pursue Declared outside of all functions or before main. These can be used in all the functions in the progra
The desired level of coupling is:- Data coupling
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
what is the code to detect image forgery using Matlab..??
What is IPC? What are the various schemes available? The term IPC (Inter-Process Communication) explains various ways by which different process running on some operating syste
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