csc 155 chapter 3
FireWire allows
...
The typical hard disk consists of several
platters
A touchpad responds to
pressure
The traditional QWERTY keyboard has been shown to cause
repetitive-stress injuries
A ________ uses pressure as a user presses it with a stylus to send signals.
graphics tablet
Bar code readers use ________ to read universal product codes (UPCs), inventory codes, and other codes created from patterns of variable-width bars.
light
A(n) ________ uses laser beams rather than magnets to read and write bits of data on a reflective aluminum layer of the disc.
optical disk drive
A standardized test that you may have taken in school could have been scored by a(n) ________.
optical mark reader
The acronym WORM stands for
write-once, read-many
The problem with disk drives and their moving parts is that they will eventually fail.
true
This relatively new interface standard for connecting computers to most external peripherals is a
FireWire
________ translates the user's handwritten forms into computer-readable characters.
Handwriting recognition software
What is it called when you can remove and replace devices without turning off your computer?
Hot swapping
________ is a high-speed connection developed by Apple.
LAN
For a faxed document with text to be edited, it must be processed by ________ software.
OCR
_______ can interpret voice data into words that can be understood by the computer.
Speech recognition software
Bar-code readers use light to read
UPC's
this type of drive is popular for storing data files created on publicly used computers (such as at a school):
USB flash drive
The process of creating colors by combining colored lights is called ________ color
additive
________ allow(s) drives to be built into a computer system.
bays
Most wireless keyboards use this technology to send signals to the rest of the system:
bluetooth
The display size of a monitor is measured
diagnolly
Colors on a monitor are formed by adding different amounts of red, yellow, and blue.
false
Laser and inkjet printers typically produce documents that have high-resolution output—usually 600 or more dots per inch.
false
This type of memory card is used in MP3 players, smart phones, and many other electronic devices:
flash memory
________ is a type of erasable, reliable, and compact memory that is a viable alternative to disk storage.
flash memory
digital cameras store bit patterns
flash memory cards or other digital storage media
Most new computers do not come with
floppy drives
Lately Microsoft's digital domain has been threatened by this Web-based company:
Connectivity for a new computer means
having a modem and/or network connection to communicate with other computers.
The most common color printers are
inkjet
Most mice have two or more buttons; the right mouse button is usually used for
issuing other commands
The following are all examples of game controllers:
joystick, gamepad, and Nintendo Wii remote.
The ________ is the most common input device.
keyboard
The two main types of nonimpact printers are
laser and inkjet
In a laser printer, what creates electrical charges on the drum that then attracts ink to those areas?
laser beam
Optical disc drives use ________ rather than magnets to read and write bits of data on a reflective aluminum layer of a disc.
laser beams
This variation on keyboard design displays keys that react to touch or movement:
laser projections
________ replaced MS-DOS.
microsoft windows
the display screen is also called a
monitor
The most common pointing input device is the
mouse
The pointing device that comes built-in on a laptop computer can be any device EXCEPT a
mouse
A smart phone is a(n) handheld ________ input device.
multi-touch
Microsoft's Surface, a computer embedded in a table with a large touch-sensitive tabletop that serves as the monitor, is based on this type of technology
multi-touch
________ technology allows users to use multifinger or multihand gestures to accomplish complex tasks quickly.
multi-touch input device
A limitation of software that digitizes voice data is that it
must be trained to recognize individual voices.
Engineering blueprints are typically printed on a
plotter
How is a magnetic disk drive read?
randomly
The three additive primary colors in a computer display include
red, green, blue.
The typical mouse uses ________ to detect movement.
reflected light
A key on your keyboard can be used in combination with another key to modify meanings of keystrokes. For example, holding the Shift key while pressing the "S" key types a capital S, while Ctrl+S tell a Windows application to
save the current document
A ________ is used to create a digital representation of typed text, handwritten text, graphics, and objects.
scanner
The wheel located between the two standard buttons on a mouse is used to
scroll
These are designed to monitor physical conditions, such as temperature and humidity:
sensors
Unlike optical storage, magnetic tape is
sequential
If a user with an older tower system wants their computer to accept microphone input, they must install removable
sound cards
These systems are helpful to people who cannot use their hands while they work:
speech recognition
This is a tool that you would use to enter your handwriting into a tablet PC:
stylus
A common storage device on mainframe computers, but not common on PCs, is a
tape drive
The main difference between DVD and CD technology is
the pits are packed much closer on a DVD
Compatibility, with regard to computers, refers to
the software being able to run on the computer.
One way to describe resolution is by indicating the number of columns and rows of pixels, such as 1,024 x 768
true
Unlike optical storage, magnetic tape can store massive amounts of information in a small space at a relatively low cost.
true
An advantage that LCD monitors have over CRT monitors is that LCDs are
use less energy
This device captures an analog video signal and converts it to a digital signal that can be stored in memory and displayed on a computer screen:
video digitizer
Employees who reside in different parts of the country and need to meet regularly, can use computer technology known as
videoconferencing
This type of pointing device requires batteries and uses tiny radio transmitters to send signals:
wireless mouse
Three technological trends are already changing the way people think about and use computer peripherals
wireless technology, computer networks, and the Internet "cloud."
A USB port allows a user to
connect up to 126 devices.
Most sound cards have synthesizers on them.
true
OCR is
software
________ is the early operating system developed by Microsoft.
MS-DOS
Input and output secondary storage devices include all of the following EXCEPT:
RAM
An advantage that impact printers have over nonimpact printers is that impact printers
can print multipart forms.
Most monitors fall into these two categories:
cathode-ray tube and liquid crystal display.
The following are tips for computer users to protect your health EXCEPT:
choose equipment based on its color.
The higher the resolution of a monitor, the
closer together the pixels
CD-RW stands for
compact disc-rewritable
Before a computer can recognize handwriting, an input device must
digitize the information
For a computer to recognize and understand analog data, it first must be
digitized
An analog-to-digital converter (ADC) converts electrical charges into
discrete values
The science of creating work environments that are safe and efficient for workers is known as
ergonomics
OCR stands for
optical character recognition.
Which of the following is an example of a legacy port?
parallel port
This device, when dragged across a line of printed text acts as an OCR and recognizes and stores the text to be transferred to your computer:
pen scanner
A pixel is a
picture element or dot on a screen.
Which input device resembles an upside-down mouse?
trackball
This device, a tiny handle, located in the middle of a keyboard (usually on laptop computers) is called a
trackpoint
Magnetic disks are divided into
tracks and sectors
A Blu-ray uses a blue-violet laser to pack almost six times as many bits on a disc as a DVD.
true
A CD-ROM drive is the oldest type of optical drive.
true