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Computer Engineering
A computer has instructions that require two bus cycles, one to fetch the instruction and one to fetch the data. Each bus cycle takes 250 nanoseconds and each instruction takes 500 nanoseconds (i.e., the internal processing time is negligible). The computer also has a disk with 16,512 byte sectors per track. Disk rotation time is 8.092 milliseconds. To what percentage of its normal speed is the computer reduced during DMA transfer if each DMA takes one bus cycle? Consider two cases: 8-bit bus transfer and 16-bit bus transfer.

A computer has instructions that require two bus cycles, one to fetch the instruction and one to fetch the data. Each bus cycle takes 250 nanoseconds and each instruction takes 500 nanoseconds (i.e., the internal processing time is negligible). The computer also has a disk with 16,512 byte sectors per track. Disk rotation time is 8.092 milliseconds. To what percentage of its normal speed is the computer reduced during DMA transfer if each DMA takes one bus cycle? Consider two cases: 8-bit bus transfer and 16-bit bus transfer.

Computer Networking: A Top-Down Approach (7th Edition)
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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A computer has instructions that require two bus cycles, one to fetch the instruction and one to fetch the data. Each bus cycle takes 250 nanoseconds and each instruction takes 500 nanoseconds (i.e., the internal processing time is negligible). The computer also has a disk with 16,512 byte sectors per track. Disk rotation time is 8.092 milliseconds. To what percentage of its normal speed is the computer reduced during DMA transfer if each DMA takes one bus cycle? Consider two cases: 8-bit bus transfer and 16-bit bus transfer.

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