Intro to Computers - Ch 4 (Test)

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

Bit depth

When scanning, lower resolution is acceptable if the image is to be enlarged significantly or if only one part of the image is to be extracted and enlarged.

False

The accompanying figure shows a portable ____ reader.

Barcode

____ are used to input data about a person into a computer system so that the individual can be identified based on a particular unique physiological characteristic.

Biometric readers

The ____ used to be the norm for desktop computers.

CRT monitor

Display device size is measured diagonally from corner to corner, in contrast to the way TV screens are measured.

False

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

True

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

True

A graphics tablet is also called a digitizing tablet.

True

A system used to enable a computer to recognize voice input as spoken words is a(n) speech recognition system. _________________________

True

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

Barcode

Wireless displays connect to a computer using a wireless networking connection such as Wi-Fi or ____.

Bluetooth

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

LCD displays use layers of organic material which, when electric current is applied, emits a visible light. _________________________

False

Most printers today are impact printers. _________________________

False

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

False

Optical character recognition (OCR) is a technology confined primarily to the banking industry, where it is used to facilitate high-volume processing of checks.

False

Optical marks are characters specifically designed to be identifiable by humans as well as by some type of optical character recognition (OCR) device. _________________________

False

Printer output is a type of soft copy.

False

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

False

Scanners produce images through either impact or nonimpact technologies. _________________________

False

The number of digital photos that can be stored in a camera at one time depends only on the capacity of the storage medium being used.

False

Digital still cameras most often use ____ cards for storage.

Flash memory

A ____ is designed to scan flat objects one page at a time.

Flatbed scanner

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

Function

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 has recently enacted a new policy that says that all users must use the ____ attached to their computers when carrying out activities on the computer that will provide sound, so as to not disturb the other users.

Headphones

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

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

Ink-Jet printers

____ are the most common type of flat-panel technology used for small- to medium-sized computer monitors.

LCDs

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

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

Laser Projectors

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)

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 and that allows multi-touch input from multiple users.

Table PC

"Digital video cameras" refer to digital camcorders and small digital video cameras used in conjunction with computers and other devices.

True

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

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

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

True

Optical zoom specifications reflect how much the camera can zoom without losing image quality. _________________________

True

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

True

Digital camcorders are similar to conventional ____ camcorders.

Analog

A difference between CRT monitors and flat-panel displays is that most flat-panel displays use digital signals to display images, while CRT monitors use ____.

Analog signals

The accompanying figure shows a(n) ____ printer.

Dot-matrix

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

Dots per inch

A(n) joystick is a set of headphones with a built-in microphone. _________________________

False

Each pixel on an LCD display emits light in the necessary color.

False

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

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

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

Megapixels

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

Monitor

Display devices can be ____ displays, in which each pixel can only be one of two colors, such as black or white.

Monochrome

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

Mouse

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

OLED

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

Optical mark readers (OMRs)

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 ____, typically 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

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

Pixel

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

QR

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

Resolution

With a ____, the user touches the screen with his or her finger to select commands or otherwise provide input to the computer with which it is being used.

Touch screen

TOLED displays are transparent and can emit light toward the top and bottom of the display surface. _________________________

True

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

True

The video card or the integrated graphics component determines the graphics capabilities of the computer. _________________________

True

____ monitors can be added to a computer without requiring a video card that supports multiple monitors.

USB