Computer In. Ch - 4

TOLED displays are transparent.

True

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

Bit depth

The ____ used to be the norm for desktop computers.

CRT monitor

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

A graphics tablet is also called a digitizing tablet.

True

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

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

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

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

Data projector

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

Dot-matrix printer

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

False

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

False

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

False

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

False

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

False

Printers produce 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 card being used.

False

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

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

Ink-jet printers

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

Monochrome

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

____ 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 ____, 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 readers

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

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

QR code

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

Resolution

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

The term phosphorescence refers to 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

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

True

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

megapixels

Digital camcorders are similar to conventional ____ camcorders.

Analog

Print speed is typically measured in ____.

Pages per minute (ppm)

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

Barcode

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

False

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

False

Joysticks are headphones with a built-in microphone.

False

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

False

Most printers today are impact printers.

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

Digital still cameras most often use ____ cards for storage.

Flash memory

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

Flatbed scanners

____ 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

Some 3D projectors are designed to project ____.

Holograms

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

Ink-jet prinkter

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

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

Monitor

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

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

True

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

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

CRT monitors use ____.

analog signals