Give a Concise Answer to Each of the Following Questions

question 13

Essay

Give a concise answer to each of the following questions. Limit your answers to 20-30 words.
(a) What is memory mapped I/O?
(b) Why is DMA an improvement over CPU programmed I/O?
(c) When would DMA transfer be a poor choice?

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Definitions:

Implied Trust

A trust created by a court when (1) an express trust fails and the court can imply the existence of a trust from certain behavior or (2) the law steps in to protect someone from fraud or other wrongdoing.

Involuntary

Actions or reactions that occur without a person's conscious decision or control, often referencing physical or legal circumstances.

Oral Will

A will spoken out loud to witnesses in situations where a written will cannot be made, recognized as legally valid in some jurisdictions under specific conditions.

Revoking

The act of officially cancelling or withdrawing something, such as a law, contract, or privilege.