CE 6 Study Guide
________ _______ is a field of computer science that attempts to develop computer systems that can mimic or simulate human senses, thought processes, and actions.
Artificial intelligence
_______ ___ _____ ________ ______ are scanners that are able to recognize special characters and marks.
Character and mark recognition devices
_______ printers are connected to the Internet providing printing services to others on the Internet.
Cloud
_______ capability is provided by most printers but is expensive to use so many people print in grayscale as an alternative.
Color
______ _______ have a large display connected to a computer or projector and are used in classrooms and boardrooms.
Digital whiteboards
____ ______ is the distance between each pixel.
Dot pitch
______ printing reduces paper waste.
Duplex
_____ is concerned with designing input and output devices to increase ease of use and to avoid health risks.
Ergonomics
______, used in virtual reality applications, has/have sensors that collect data about your hand movements.
Gloves
A _____ delivers a much clearer and more detailed wide-screen picture than regular television.
HDTV
______ printers are the most widely used printers and are reliable, quiet and inexpensive.
Ink-jet
____ ______ translate words, images, and actions into a form the computer can process.
Input devices
This is a specialized input/output device for sending and receiving voice communication over the Internet.
Internet telephone
______ _______ is another name for Voice over IP.
Internet telephony
Most of today's flat-panel monitors are _____.
LCD
____ printers use a laser light beam to produce images with excellent letter and graphics quality.
Laser
_______ within a printer is used to store printing instructions and documents waiting to be printed.
Memory
This type of scanner does not recognize individual letters, images, or codes but recognized light, dark and colored areas.
Optical scanner
___________ ______ robots imitate some of the human senses.
Perception system
______ ______ provide an intuitive with the system unit by accepting pointing gestures and converting them into machine-readable input.
Pointing devices
_______ measures the clarity of an image using dots per inch.
Resolution
_____ laser printers are more expensive and are used by a group of users.
Shared
_____ is a VoIP service provider that is free and does not require dedicated hardware.
Skype
_______ printers use heat elements to produce images on heat-sensitive paper.
Thermal
T/F. Robotics is an area of artificial intelligence.
True
T/F. The mouse pointer usually appears in the shape of an arrow and changes shape depending on the application.
True
______ reality is a simulated reality created in 3-D by computers.
Virtual
Ooma, Vonage, MagicJack and Skype are all _____ service providers.
VoIP
These systems use a microphone, sound card, and special software to allow users to operate computers and other devices using voice commands.
Voice Recognition
The width of a monitor divided by its height is called the ___ _____.
aspect ratio
In a supermarket at the checkout counter, electronic cash registers use a ___ _____ reader to scan each product's UPC code.
bar code
Besides flat-panel and cathode-ray tube monitors, there are other types of specialized monitors. What are they?
book readers, high-definition televisions, and digital whiteboards
document scanner
can quickly scan multipage documents
navigation keys
control the cursor or insertion point on the screen
ergonomic keyboard
designed specifically to alleviate wrist strain associated with the repetitive movements of typing
virtual keyboard
display an image of a keyboard on a touch screen device
start key
displays the start menu
optical mouse
emits and senses light to detect mouse movement
numeric keypad keys
enter numbers and arithmetic symbols and controls cursor or insertion point
To avoid back and neck pain your monitor should be at ___-level.
eye
traditional keyboard
full-sized, rigid, rectangular keyboards that include function, navigational, and numeric keys
portable scanner
handheld device that slides across the document to be scanned
mechanical mouse
has a ball on the bottom and is attached with a cord to the system unit
Potential problems caused by prolonged computer use:
headache, back pain, and eyestrain
Audio-output devices:
headset, speaker
Advantages of laser printers over ink-jet printers:
higher quality, faster
Digital Cameras and Digital Video Cameras are considered ______ _________ devices.
image capturing
input devices
keyboard, mouse, image capturing device, audio-input device, scanning device, pointing device
flatbed scanner
like a copy machine
A ______ card reader interprets encoded information on a credit card when the card is swiped through the reader.
magnetic
printer resolution
measure of the clarity of an images measured in dots per inch
The most widely used audio-input device:
microphone
PDA keyboard
miniature keyboards for PDAs
The ______, also known as display screen, presents images of text and graphics.
monitor
A ____ controls the pointer that is displayed on the monitor.
mouse
A _______ _________ typically combines the capabilities of a scanner, printer, fax and copy machine.
multifunctional device (MFD)
speed of a printer
number of pages printer per minute
types of mice:
optical, wireless
All the types of character and mark recognition devices:
optical-character recognition, optical-mark recognition, magnetic-ink character recognition
A device is used by banks to automatically read the unusual numbers on the bottom of checks and deposit slips.
optical-mark recognition
An _____-_____ _______ device is used to read standardized multiple-choice tests.
optical-mark recognition
An ______ _____ _______ device is used by department stores to read retail price tags.
optical-mark recognition
In an electronic presentation, the text, graphics, and photographs would all be input, and the completed presentation would be the ______.
output
Examples of printers:
photo, thermal, dot-matrix
Images are formed on a monitor by a series of dots, or _______, called picture elements.
pixels
Using output from graphics tablets and other graphical input devices, _____, create maps, images, and architectural and engineering drawings.
plotters
Pointing devices:
pointing stick, stylus, joystick, touchpad, trackball, mouse, touch screen
A _____ is a device that translates information that has been processed by the system unit and outputs it to hard copy.
printer
duplex printing
printing on both sides of a sheet of paper
color printing
provided by most printers but is expensive to use
A ______ _______ converts scanned text and images into a form that the system unit can process.
scanning device
function key
shortcuts for specific tasks
The active display area, or ______, of a monitor is measured by the diagonal length of a monitor's viewing area.
size
Features that determine the clarity of displayed images on a monitor.
size, resolution, dot pitch, contrast ratio, aspect ratio
Output devices:
speakers, printer, monitor
The average _____ for a personal printer is 15 to 19 pages per minute.
speed
Characteristics of ink-jet printers:
spray ink at high speed, reliable, quiet, inexpensive
printer memory
stores printing instructions and documents waiting to be printed
All the advantages of having a flat panel monitor:
thinner, more portable, require less power
wireless keyboard
transmit input to the system unit through the air without the use of cables
wireless mouse
uses radio waves or infrared light waves to communicate with the system unit
A digital video camera, also known as a ______, captures images and sends them to a computer for broadcast over the Internet.
webcam