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45 terms

Discovering Computers Ch. 6

STUDY
PLAY
output is
data that has been processed into a useful form
computers process data (input) into
output
four categories of output are
text, graphics, audio, and video
output device is
any hardware component that conveys information to one or more people
commonly used output devices include
display devices, printers, speakers, headphones, and earphones, fax machines and fax modems, multi-function peripherals, data projectors, interactive whiteboards, and force-feedback joysticks, wheels, gamepads, and motion-sensing game controllers
types of flat-panel displays
LCD monitors, LCD screens, and plasma monitors
flat-panel display is
a display with a shallow depth that typically uses LCD or gas plasma technology
LCD monitor
a desktop monitor that uses a liquid crystal display to produce images
liquid crystal display uses a liquid compound to
present information on a display device
plasma monitor is
a display device that uses gas plasma technology, which substitutes a layer of gas for liquid crystal material in an LCD monitor
CRT monitor is
a desktop monitor that contains a cathode-ray tube
CRT monitors have a much larger
footprint than LCD monitors; that is, they take up ore desk space
CRT monitor usually
costs less than an LCD monitor, but it also generates more heat and uses more power than and LCD monitor
users can print by connecting a computer to a printer with a
cable that plugs in a port on the computer
Bluetooth printing uses
radio waves to transmit output to a printer
infrared printing is
when a computer or other device communicates with the printer via infrared light waves
nonimpact printer
forms characters and graphics on a piece of paper without actually striking the paper. Some spray ink other use heat or pressure to create images.
commonly used nonimpact printers
ink-jet, printers, photo printers, laser printers, thermal printers, etc.
impact printer
forms characters and graphics on a piece of paper by striking a mechanism against an inked ribbon that physically contacts the paper
two commonly used impact printers
dot-matrix printer and line printer
ink-jet printer is
a type of nonimpact printer that forms characters and graphics by spraying tiny drops of liquid ink onto a piece of paper
photo printer
color printer that produces photo-lab-quality pictures
laser printer
high-speed, high-quality nonimpact printer that operates in a manner similar to a copy machine, creating images using a laser beam and powdered ink, called toner
thermal printer
generates images by pushing electrically heated peins against heat-sensitive paper
mobile printer
a small, lightweight, battery-powered printer that allows a mobile user to print from a notebook computer or other personal mobile device
label printer
a small printer that prints on an adhesive-type material that can be placed on a variety of items, most also print bar codes
postage printer
special type of lable printer that has built-in scale and prints prostage stamps
plotters
sophisticated printers used to produce high-quality drawings, such as blueprints, maps, and circuit diagrams
large-format printer
uses ink-jet technology on a large scale to create photo-realistic-quality color prints
three comonly used audio output devices
speakers, headphones, and earphones
audio output device
a component of a computer that produces music, speech, or other sounds
headphones
rest outside the ear
earphones or earbuds
rest inside the ear canal
fax machine
device that codes and encodes documents so that they can be transmitted over phone lines
fax
document sent or received via fax machine
fax modem
modemm that allows you to send and receive electronic documents as faxes
multifunction peripheral
single devicie that looks like a copy machine but provides the functionality of a printer, scanner, copy machine, and perhaps a fax machine
data projector
a device that takes the text and images displaying on a computer screen and projects them onto a larger screen so that an audience of people can see them clearly
interactive whiteboard
a touch-sensitive device, resembling a dry-erase board, that displays the image on a connected computer screen
input devices used to control actions of a player or object in computer games, simulations, and video games
joysticks, wheels, gamepads, and motion-sensing game controllers
force feedback
technology that sends resistance to the device in response to actions of the user, used in todays joysticks, wheels, gamepads, and motion-sensing game controllers
hearing-impared users can instruct programs to
displays words instead of sound
Windows Vista allows visually impared users to
enlarge items on the screen and change other setting, such as increasing the size or changing the color of the text to make text easier to read
blind users can
work with voice output instead of a monitor
Braille printer
prints information in Braille on paper