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Exam 4: Input and Output

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Question 1

True/False

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Most printers today are impact printers. _________________________

A) True
B) False

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Question 2

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____ keys on a keyboard are used for issuing commands in some programs.

A) Alphanumeric
B) Number
C) Arrow
D) Function

E) None of the above
F) A) and B)

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Question 3

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One-dimension (1D) barcodes contain data only vertically.

One factor affecting digital camera quality is the number of pixels, measured in ____, used to store the data for each image.

Digital video cameras include digital camcorders and small digital video cameras used in conjunction with computers and other devices.

Describe the common features and uses of portable scanners.

Scanners produce images through either impact or nonimpact technologies. _________________________

Keyboards can be built into a device, attached by inserting the keyboard's wired cable or ____ into a USB port, or connected via a wireless networking connection such as Bluetooth.

____ form images by spraying tiny drops of liquid ink onto the page, one printed line at a time.

Some 3D projectors are designed to project ____.

LCD panels used with computer monitors typically include a light, usually at the rear of the display device-a technique referred to as ____ .

A(n) ____ uses charged liquid crystals located between two sheets of clear material to light up the appropriate pixels to form the image on the screen.

While ____________________ technology has traditionally been used with the very large displays used by businesses, as well as with many large screen televisions, it is being replaced by LEDs.

A display device is the most common form of output device.

Because the output appears temporarily on a display device, it is sometimes referred to as ____________________.

Most scanners scan in color and some are ____________________ scanners-that is, they can scan both sides of a document at one time.

____________________ take up less space on the desktop than mice and they can be used on a variety of surfaces.

Digital still cameras most often use ____ cards for storage.

A(n) ____________________ captures an image of an object (usually a flat object, such as a printed document or photograph) in digital form, and then transfers that data to a computer.

The number of bits used to store color information about each pixel is called ____.