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UC14 Chap04.rtf
UC14_Chap04.rtf
Showing 11-13 out of 14
UC14 Chap04.rtf-Chapter 4: Input and Output TRUE/F...
UC14_Chap04.rtf-Chapter 4: Input and Output TRUE/FALSE
UC14 Chap04.rtf-Chapter 4: Input an...
UC14_Chap04.rtf-Chapter 4: Input and Output TRUE/FALSE
Page 11
7.
The accompanying figure depicts a portable ____________________.
ANS: scanner
PTS:
1
REF:
139
8.
A(n) ____________________ captures the image of a usually flat object (such as a printed document,
photograph, or drawing) in digital form and then transfers that data to a PC.
ANS:
scanner
optical scanner
PTS:
1
REF:
139
9.
The text in a scanned image cannot be edited unless ____________________ software is used in
conjunction with the scanner to input the scanned text as individual text characters.
ANS:
OCR
optical character recognition
optical character recognition (OCR)
OCR (optical character recognition)
PTS:
1
REF:
139
10.
Barcodes are read with ____________________.
ANS:
barcode readers
PTS:
1
REF:
141
11.
____________________, which contain tiny chips and radio antennas, can be attached to objects that
need to be tracked.
ANS:
RFID tags
PTS:
1
REF:
142
12.
____________________ is the science of identifying individuals based on measurable biological
characteristics.
Page 12
ANS: Biometrics
PTS:
1
REF:
146
13.
Although other factors also affect the quality of digital photographs, the number of
____________________ does impact how large digital photos can be printed.
ANS: pixels
PTS:
1
REF:
147
14.
____________________ is the process of entering audio data into the computer.
ANS:
Audio input
PTS:
1
REF:
148
15.
Because the output appears temporarily on a display device, it is sometimes referred to as
____________________.
ANS:
soft copy
PTS:
1
REF:
150
16.
____________________ displays form images by manipulating electronically charged chemicals or
gases sandwiched between thin panes of glass or other transparent material.
ANS: Flat-panel
PTS:
1
REF:
152
17.
____________________ provide a connection to a monitor, as well as determine graphics capabilities.
ANS:
Video cards
PTS:
1
REF:
153
18.
LCD panels used with computer monitors typically include at least one fluorescent light inside the
panel, usually at the rear of the display—a technique referred to as ____________________.
ANS: backlighting
PTS:
1
REF:
155
19.
____________________ is a technology used with flat panel display devices that attempts to mimic
the look of ordinary printed paper.
ANS:
E-paper
Electronic paper
Electronic paper (e-paper)
E-paper (electronic paper)
PTS:
1
REF:
156
Page 13
20.
____________________ displays use a layered technology like LCD and OLEDs, but they use a layer
of gas between two plates of glass instead of liquid crystals or organic material.
ANS: Plasma
PTS:
1
REF:
158
ESSAY
1.
Describe the common features and unique benefits of trackballs.
ANS:
Similar to an upside-down mechanical mouse, a trackball has the ball mechanism on top, instead of on
the bottom. The ball is rotated with the thumb, hand, or finger to move the onscreen pointer. Because
the device itself does not need to be moved, trackballs take up less space on the desktop than mice;
they also are easier to use for individuals with limited hand or finger mobility.
PTS:
1
REF:
137
TOP:
Critical Thinking
2.
What is a touch pad?
ANS:
A touch pad is a rectangular pad across which a fingertip or thumb slides to move the onscreen pointer.
The buttons that appear next to the touch pad surface are used to perform clicks and other mouse
actions; often the pad can be tapped to make selections, as well. Although most often found on
notebook computer keyboards, touch pads are also available as stand-alone devices to be used with
desktop computers and are built into some keyboards.
PTS:
1
REF:
137
TOP:
Critical Thinking
3.
Describe the common features and uses of portable scanners.
ANS:
Portable scanners are designed to capture text and other data while on the go. Some are full-page
portable scanners that can capture images of an entire document (such as a printed document or
receipt) encountered while on the go; others are handheld scanners designed to capture text one line at
a time. In either case, the scanner is typically powered by batteries, the scanned content is stored in the
scanner, and the content is transferred to a computer (via a cable or a wireless connection) when
needed. Some handheld scanners can also be used to translate scanned text from one language to
another.
PTS:
1
REF:
140
TOP:
Critical Thinking
4.
How do digital cameras work?
ANS:
Digital cameras work much like conventional film cameras, but instead of recording images on film
they record them on a digital storage medium, such as a flash memory card, digital tape cartridge,
built-in hard drive, or DVD disc.
PTS:
1
REF:
146
TOP:
Critical Thinking
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