In Polling I/O, the Main Inefficiency Comes from

question 23

Multiple Choice

In polling I/O, the main inefficiency comes from

• A) the hardware controller when it notifies the CPU that the device is ready for service.
• B) the basic polling operation that may be comprised of several CPU instructions.
• C) polling when it is attempted repeatedly yet rarely finds a device ready for service.
• D) the slow data transfer rate between a device and the host.

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Definitions:

Anticipated Reaction

A projected response or feeling expected from someone based on a specific action, statement, or event.

Direct Request Pattern

A communication approach that involves stating a request or need straightforwardly at the beginning, commonly used for clarity and efficiency.

Entire Message

The whole content or meaning conveyed by a communication, including verbal and non-verbal elements.

Sales Pattern

A pattern of persuasion that consists of an attention-getting opener, a body with reasons and details, and an action close.