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Exam 4: Input and Output

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Question 41

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____________________ displays form images by manipulating electronically charged chemicals or gases sandwiched between thin panes of glass or other transparent material.

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Flat-panel...

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Question 42

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____________________ is the science of identifying individuals based on measurable biological characteristics.

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Question 43

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PHOLED technology is especially appropriate for use on mobile devices, consumer electronics, and other devices where power consumption is an important concern.

Portable barcode readers are always used in point-of-sale (POS) systems.

When comparing the zoom capabilities of a digital camera, look for optical zoom, not digital zoom, specifications.

J oysticks are headphones with a built-in microphone. _________________________

____ are particularly useful for individuals who need to scan barcodes while on the go.

What is a touch pad?

The number of digital photos that can be stored in a camera at one time depends only on the capacity of the card being used.

A graphics tablet is also called a digitizing tablet.

Images need to be scanned at a lower resolution if the image will be enlarged significantly.

Barcodes are read with ____________________.

The ____ used to be the norm for desktop computers.

Plasma displays use a layered technology like LCD and ____ and look  similar to LCD displays.

The idea behind pen input and ____________________ in general is to make using a computer or other device as convenient as writing with a pen.

____________________ contain tiny chips and radio antennas; they can be attached to objects, such as products, price tags, shipping labels, ID cards, assets, and more.

The most common flat-panel technologies include liquid crystal display (LCD) , various types of light emitting diode (LED) , ____, and e-paper.

____________________ are found most often at checkout counters to record signatures used to authorize credit card purchases electronically.

Case-Based Critical Thinking Questions Case 4-2 Lisa is a student who regularly uses the computers at her local Internet café to listen to music, talk to her friends and family through the Internet, and play computer games. The Internet café has recently enacted a new policy that says that all users must use the ____ attached to their computers when carrying out activities on the computer that will provide sound, so as to not disturb the other users.

Digital camcorders are similar to conventional ____ camcorders.