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