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Q. Explain functions of direct memory access?
Though CPU intervention in DMA is minimised however it should use path between interfaces that is system bus. So DMA involves an extra interface on system bus. A scheme known as cycle stealing permits DMA interface to transfer one data word at a time, after that it should return control of bus to processor. Processor merely delays its operation for one memory cycle to permit directly memory I/O transfer to 'steal' one memory cycle. When an I/O is requested processor issues a command to DMA interface by transmitting to DMA interface the subsequent information (Figure below):
Figure: DMA block diagram
What is configuration? Turing machine computes, changes occur in the current state, the current tap contents and the current head location. A setting of the
Explain the Race Around Condition? Consider the inputs of the JK flipflop j=1 and k=1 and Q=0 when a clock pulse of width tp is applied the output will change from 0 to 1 after
Write a program to find the area under the curve y = f(x) between x = a and x = b, integrate y = f(x) between the limits of a and b. The area under a curve betw #includ
The slowest sorting procedure is Bubble Sort is the slowest sorting process.
The output of a JK flipflop with asynchronous preset and clear inputs is '1'. The output can be changed to '0' with which conditions ? Ans. Through applying J = 1, K = 1 and u
The process which is underlined throughout the check of base data is called as candidate check. When performing candidate check performance varies either towards the positive side
State the Relative addressing The location of data is specified relative to current value of the program counter. This is helpful for specifying location of data which is given
Functional units of a computer system: Digital computer systems consist of 3 distinct units. These units are as follows: Central Processing unit Input unit and Output unit.
In a time multiplexed space switching system, one speech sample appears every? One speech sample shows every 125 micro sec, in a time multiplexed space switching system.
Q. Describe Independent Loops in fortran? HPF offers extra opportunities for parallel execution by employing the INDEPENDENT directive to declare the iterations of a do-loop is
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