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Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
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Consider a computer system with DMA support.
The DMA module is transferring a 1-byte
character in one CPU cycle from a device to
memory through cycle stealing at regular
intervals. Consider a 4 MegaHertz processor. If
1% processor cycles are used for DMA, then the
data transfer rate of the device is
bytes
per second.
Transcribed Image Text:Consider a computer system with DMA support. The DMA module is transferring a 1-byte character in one CPU cycle from a device to memory through cycle stealing at regular intervals. Consider a 4 MegaHertz processor. If 1% processor cycles are used for DMA, then the data transfer rate of the device is bytes per second.
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