Which of the following hardware functionalities enables the operating system to control the amount of power given to each device attached to the computer? (Unit 17)

TESTING PRINCIPLES AND CONCEPTS

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Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]

A	ACPI
B	Address Bus
C	ALU
D	Analog Modem

Explanation:

Detailed explanation-1: -Efficient power management − ACPI allows the operating system to manage power usage of the system’s devices, such as the CPU, GPU, and hard drives.

Detailed explanation-2: -ACPI is designed to allow the operating system to control the amount of power provided to each device or peripheral attached to the computer system.

Detailed explanation-3: -ACPI devices include low-level system devices such as batteries, thermal zones, and other devices defined in a system’s ACPI namespace. An ACPI namespace is a hierarchical namespace that an ACPI BIOS uses to reference objects.

Detailed explanation-4: -The Windows ACPI driver, Acpi. sys, is an inbox component of the Windows operating system. The responsibilities of Acpi. sys include support for power management and Plug and Play (PnP) device enumeration. On hardware platforms that have an ACPI BIOS, the HAL causes Acpi.

There is 1 question to complete.

SOFTWARE ENGINEERING

SOFTWARE TESTING

TESTING PRINCIPLES AND CONCEPTS