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:

Straight-Line Method

A method of calculating depreciation for accounting purposes, allocating a uniform expense amount to each year of an asset's useful life.

Depreciated

A decrease in the value of an asset over time, often due to wear and tear or obsolescence, which can be used for tax deductions.

Primarily Personal Property

Items or assets that are mainly used for personal, non-business purposes, which may include vehicles, furniture, and electronics.

Net Loss

The amount by which expenses exceed revenues, often deductible from other sources of income on a tax return.