PDAs, Smart Phones, and Other Small Computing Devices Often Use

question 156

Multiple Choice

PDAs, smart phones, and other small computing devices often use a ____ operating system.

• A) single user/single tasking
• B) single user/multitasking
• C) multiuser
• D) multiprocessing

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Definitions:

Pineal Gland

A small endocrine gland in the brain that produces melatonin, a hormone that regulates sleep-wake cycles.

Delta Rhythm

Slow brain-wave activity pattern associated with deep sleep.

Deep Sleep

The phase of sleep also referred to as slow-wave sleep, essential for physical renewal, hormonal regulation, and the growth and repair of tissues.

Alpha Rhythm

Large, extremely regular brain waves with a frequency ranging from 7 to 11 Hz; found in most people when they are relaxed with eyes closed.