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A DMA module is transferring characters to main memory from an external device transmitting at 500,000 bits per second (bps). The processor can fetch instructions at the rate of 1 million instructions per second where each instruction is 64 bits wide. Assume the bus used to access main memory is 64 bits wide and that the DMA module has priority over the CPU for memory access. In other words, when the DMA module wants to access memory, the CPU must pause for a cycle until the DMA module is done. a) How many bus cycles per second will be used by the DMA module? b) By how much (percentage) will the processor be slowed down due to the DMA activity? c) In a system without DMA, an interrupt would be generated each time 64 bits of data were available for transfer from the external device. For each interrupt, the processor would need to fetch a 100-instruction interrupt handler routine from memory, then transfer the data from the external device into a register, and finally store the data into main memory. How many bus cycles per second are used to handle the data stream now? d) By how much will the processor be slowed down?
To illustrate how asymptotic notation can be used to rank the efficiency of algorithms, use the relations "Ì" and "=" to put the orders of the following functions into a sequence, where e is an arbitrary real constant, 0
Describe why an analyst needs to understand how people think, how they learn, how they react to change, how they communicate, and how they work.
How does this versatility of Microsoft Excel affect application support? With this versatility and possible customization what assumptions must be made
To begin to combine and demonstrate skills in drawing tools, tweens, working with text, and telling a story
Create a C program that takes an integer argument from the command line and outputs sum of all digits of the integer. For example, the result of the invocation sum of digits 12345 should be fifteen.
Describe three different methods that freedom of expression is limited in spite of unequivocal language of First Amendment.
Create an array of numbers filled by the random number generator. Determine the smallest, largest, average, and calculate the standard deviation. Allow the client to pick the size of the array to be used and allow the client to repeat the process ..
this pattern (9 rows), modify your program so that your user can input an odd number in the range from 1 - 25 for the number of rows in the diamond.
On a recent flight, you sat next to Mr. Mike Duke, the former CEO of Walmart, who is a Georgia Tech alumnus. Your conversation dealt with the impact of social networks on big box retailers.
Why is the topic important for network administrators today?
Give a CFG for the set of all strings over {a,b} with twice as many a's as b's
Create a user defined Company class the class will include Company Name, Stock Symbol and stock value per share. Include a parameterized constructor and get methods for each of the instance variables. Also include a toString method.
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