CS Chapter 4

True or False -- Computer speakers are the most common type of audio output device.

True

True or False -- Digital video cameras include digital camcorders and small digital video cameras used in conjunction with computers and other devices.

True

True or False -- Graphics tablets are often used in conjunction with image editing software to create original images or to modify digital photographs.

True

True or False -- In addition to a keyboard, most computers today are used in conjunction with some type of pointing device.

True

True or False -- Notebook and netbook computers usually have a keyboard that is similar to a desktop keyboard, but it is typically smaller.

True

True or False -- Optical zoom specifications reflect how much the camera can zoom without losing image quality.

True

True or False -- PHOLED technology is especially appropriate for use on mobile devices, consumer electronics, and other devices where power consumption is an important concern.

True

True or False -- Speech recognition systems enable the device being used to recognize voice input as spoken words.

True

True or False -- TOLED displays are transparent.

True

True or False -- The graphics tablet is typically connected to a computer via a USB port.

True

True or False -- Joysticks are headphones with a built-in microphone.

False

True or False -- Optical character recognition (OCR) is a technology used primarily by the banking industry to facilitate check processing.

False

True or False -- Optical marks are characters specifically designed to be identifiable by humans as well as by an OCR device.

False

True or False -- Portable barcode readers are always used in point-of-sale (POS) systems.

False

True or False -- Scanners produce images through either impact or nonimpact technologies.

False

True or False -- A graphics tablet is also called a digitizing tablet.

False

True or False -- Most printers today are impact printers.

False

True or False -- Printers produce soft copy.

False

True or False -- LCD displays do not use backlighting, which makes them energy efficient and lengthens the battery life of portable devices using these displays.

False

True or False -- One-dimension (1D) barcodes contain data only vertically.

False

____ input data from special forms to score or tally exams, questionnaires, ballots, and so forth.

Optical mark readers (OMRs)

____ are used to input data about a person so that the individual's identity can be verified based on a particular unique physiological characteristic.

Biometric readers

The ____ used to be the norm for desktop computers.

CRT monitor

True or False -- Images need to be scanned at a lower resolution if the image will be enlarged significantly.

False

True or False -- The number of digital photos that can be stored in a camera at one time depends only on the capacity of the card being used.

False

True or False -- Wired displays connect to a computer or other device (such as to a smartphone) using a wireless networking connection such as Wi-Fi, Bluetooth, or a special wireless standard designed for transmitting multimedia.

False

True or False -- The term phosphorescence refers to a process that results in much more conversion of electrical energy into light instead of heat.

True

True or False -- The video card or the integrated graphics component determines the graphics capabilities of the computer.

True

True or False -- When comparing the zoom capabilities of a digital camera, look for optical zoom, not digital zoom, specifications.

True

True or False -- With handwriting recognition, the computer interprets data handwritten with a digital pen as individual characters.

True

Touch screens allow the user to touch the screen with his or her finger to select ____ or otherwise provide input to the device associated with the touch screen.

commands

True or False -- RFID tags need to be within line of sight of a reader.

False

CRT monitors use ____.

analog signals

The display device for a desktop computer is formally called a ____.

monitor

Keyboards can be built into a device, attached by inserting the keyboard's wired cable or ____ into a USB port, or connected via a wireless networking connection such as Bluetooth.

wireless receiver

A(n) ____ is used to display output from a computer to a wall or projection screen.

data projector

Some 3D projectors are designed to project ____.

holograms

True or False -- CRT monitors use digital signals to display images, which allows for sharper images.

False

True or False -- Display device size is measured diagonally from corner to corner as opposed to the way TV screens are measured.

False

True or False -- Display devices are used to select and manipulate objects, to input certain types of data (such as handwritten data), and to issue commands to the computer.

False

True or False -- Each pixel on an LCD display emits visible light in the necessary color.

False

True or False -- LCD displays use layers of organic material, which emit a visible light when electric current is applied.

False

____ keys on a keyboard are used for issuing commands in some programs.

Function

____ form images by spraying tiny drops of liquid ink onto the page, one printed line at a time.

Ink-jet printers

____ are the standard for business documents and come in both personal and network versions.

Laser printers

Plasma displays use a layered technology like LCD and ____ and look similar to LCD displays.

OLED

____ are particularly useful for individuals who need to scan barcodes while on the go.

Portable barcode readers

One of the most common 2D barcodes, the ____ code represents data with a matrix of small squares.

QR

True or False -- A display device is the most common form of output device.

True

True or False -- Automating the data entry process is referred to as source data automation.

True

You must have the necessary hardware to support to use multiple monitors, such as the appropriate ____.

monitor ports

Digital camcorders are similar to conventional ____ camcorders.

analog

LCD panels used with computer monitors typically include a light, usually at the rear of the display device—a technique referred to as ____ .

backlighting

A ____ is an optical code that represents data with bars of varying widths or heights.

barcode

The number of bits used to store color information about each pixel is called ____.

bit depth

A(n) ____ uses a printhead consisting of pins that strike an inked ribbon to transfer the ink to the paper.

dot-matrix printer

In a printer, the number of ____ affects the quality of printed output.

dots per inch (dpi)

Digital still cameras most often use ____ cards for storage.

flash memory

The most common flat-panel technologies include liquid crystal display (LCD), various types of light emitting diode (LED), ____, and e-paper.

gas plasma

A(n) ____ is a flat, touch-sensitive device used in conjunction with a digital pen.

graphics tablet

Case-Based Critical Thinking Questions Case 4-2 Lisa is a student who regularly uses the computers at her local Internet café to listen to music, talk to her friends and family through the Internet, and play computer games. The Internet café provides ____ on some computers so that users can both listen and talk through the device during a telephone call made through the computer without disturbing other users.

headsets

Case-Based Critical Thinking Questions Case 4-1 Stacey is the office manager for a small business and is looking for a new printer and scanner for her office. After doing some research into printers, Stacey decides to buy a(n) ____ printer, since they are the standard for business documents and are typically faster and have better quality output than other types of printers.

laser

A(n) ____ uses charged liquid crystals located between two sheets of clear material to light up the appropriate pixels to form the image on the screen.

liquid crystal display (LCD)

One factor affecting digital camera quality is the number of pixels, measured in ____, used to store the data for each image.

megapixels

A ____ typically rests on the desk or other flat surface close to the user's computer, and it is moved across the surface with the user's hand in the appropriate direction to point to and select objects on the screen.

mouse

Case-Based Critical Thinking Questions Case 4-1 Stacey is the office manager for a small business and is looking for a new printer and scanner for her office. When buying a scanner, Stacey needs to make sure that the scanner has a high enough ____, usually measured in the number of dots per inch (dpi), for the business needs of the office.

optical resolution

Print speed is typically measured in ____.

pages per minute (ppm)

A ____ is the smallest colorable area on a display device.

pixel

The most common HD format is 1080p, which uses a screen resolution of 1,920 Χ 1,080 and displays screen images one line at a time, called ____.

progressive display

Case-Based Critical Thinking Questions Case 4-2 Lisa is a student who regularly uses the computers at her local Internet café to listen to music, talk to her friends and family through the Internet, and play computer games. Lisa needs to make sure that the computer that she is using has a ____ attached to it for her to be able to hear music and the sounds of a computer game.

speaker

A ____ is a large screen computer either built into a table or designed to be used on a table that allows multi-touch input from multiple users.

table PC