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:

Political Advantages

The benefits or leverage that a person, party, or state acquires which can be used to influence political outcomes or gain power.

Battle at Brandywine

A major battle between American troops led by George Washington and British forces during the American Revolutionary War on September 11, 1777.

Valley Forge

The military camp in southeastern Pennsylvania where the American Continental Army spent the winter of 1777–1778 during the American Revolutionary War, becoming a symbol of endurance and resilience.