Chapter 4 review questions

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

optical mark readers

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

dot matrix

Automating the data entry process is referred to as source data automation.

True

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

True

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 reciever

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

False

RFID tags need to be within line of sight of a reader.

False

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

QR

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

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

false, OLED

Printers produce soft copy.

false, hard copy

Joysticks are headphones with a built-in microphone. _________________________

false, headsets

Optical marks are characters specifically designed to be identifiable by humans as well as by an OCR device. _________________________

false, optical characters

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

megapixels

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

monitor ports

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

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

pixel

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

portable barcode scanners

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

A display device is the most common form of output device.

true

A graphics tablet is also called a digitizing tablet.

true

Computer speakers are the most common type of audio output device.

true

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

true

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

true

The graphics tablet is typically connected to a computer via a USB port.

true

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

true

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

DPI

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.

LCD

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

backlighting

____ 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 reader

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

data projector

CRT monitors use digital signals to display images, which allows for sharper images.

false

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

false

Scanners produce images through either impact or nonimpact technologies. _________________________

false, printers

Digital still cameras most often use ____ cards for storage.

flash memory

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

function

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

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

inkjet printers