A Watch Dial That Continues to Glow After a Week

question 39

Multiple Choice

A watch dial that continues to glow after a week in the dark is almost certainly

• A)fluorescent.
• B)phosphorescent.
• C)polarized.
• D)radioactive.

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Definitions:

Volatile

A keyword used in programming languages to indicate that a variable's value may be changed by elements outside of the control of the program.

Main Memory

The primary volatile memory in a computer where programs and data in current use are kept so they can be quickly reached by the computer's processor.

ALU

ALU stands for Arithmetic Logic Unit, a crucial component of the CPU that handles arithmetic and logic operations.

Microprocessor

A small, integrated circuit that performs the functions of a central processing unit of a computer.