Optical Disc Drives Use ________ Rather Than Magnets to Read

question 64

Multiple Choice

Optical disc drives use ________ rather than magnets to read and write bits of data on a reflective aluminum layer of a disc.

• A)laser beams
• B)black light
• C)ultrasound
• D)electrical currents

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Definitions:

Federalists

Supporters of the ratification of the U.S. Constitution, advocating for a strong federal government and the creation of a union of states with a centralized authority.

Federal Legislation

Laws passed by the national government of a federal country.

Waiver

An intentional relinquishment or surrender of some known right or privilege.

Earmark

A legislative provision that directs approved funds to be spent on specific projects, often within a particular congressional district.