Explain the main inefficiency of programmed I/O. Explain how interrupt-driven I/O makes input/output more efficient than using
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- Explain the main inefficiency of programmed I/O. Explain how interrupt-driven I/O makes input/output more efficient than using programmed I/O. Finally, explain how direct memory access (DMA) improves efficiency even more.
Expert Answer:
Programmed IO is a basic method of IO processing where the CPU is responsible for managing data transfer between the IO device and memory In this mode ... View the full answer
Related Book For 
Operating Systems Internals and Design Principles
ISBN: 978-0133805918
8th edition
Authors: William Stallings
Posted Date:
