Bus. Comp. Systems Ch 4
T/F With handwriting recognition, the computer interprets data handwritten with a digital pen as individual characters.
True
The ____ used to be the norm for desktop computers.
CRT monitor
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
The number of bits used to store color information about each pixel is called ____.
bit depth
A(an) ______ 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
T/F Each pixel on an LCD display emits visible light in the necessary color.
false
T/F LCD displays do not use backlighting, which makes them energy efficient and lengthens the battery life of portable devices using these displays.
false
T/F Printers produce a soft copy
false
T/F 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
T/F RFID tags need to be within the line of sight of a reader.
False
CRT monitors use ____.
analog signals
A ____ is an optical code that represents data with bars of varying widths or heights.
barcode
Some 3D projectors are designed to project ____.
holograms
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
____ 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
T/F Display device size is measured diagonally from corner to corner as opposed to the way TV screens are measured.
False
T/F 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
T/F Images need to be scanned at a lower resolution if the image will be enlarged significantly.
False
T/F LCD displays use layers of organic material, which emit a visible light when electric current is applied.
False
T/F Optical marks are characters specifically designed to be identifiable by humans as well as by an OCR device. _________________________
False
T/F Portable barcode readers are always used in point-of-sale (POS) systems.
False
T/F TOLED displays are transparent
False
T/F 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
T/F CRT monitors use digital signals to display images, which allows for sharper images.
False
T/F Joysticks are headphones with a built in microphone
False
T/F One dimension barcodes contains data only vertically
False
T/F 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
T/F Wired displays connect to a computer or other device (such as to a smartphone) using a wireless networking connection such as WiFi, Bluetooth, or a special wireless standard designed for transmitting multimedia.
False
____ form images by spraying tiny drops of liquid ink onto the page, one printed line at a time.
Ink-jet printers
Plasma display lays use a layered technology like LCD and ____ and look similar to LCD displays.
OLED
Plasma displays is a layered technology like LCD and ____ and look similar to LCD displays.
OLED
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
_______ 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 the data with a matrix of small squares.
QR
In a printer, the print ____ affects the quality of the printed output.
Resolution
T/F A display device is the most common form of output device.
True
T/F A graphic tablet is also called a digitalizing tablet
True
T/F Graphic tablets are often used in conjunction with image editing software to create original images or to modify digital photographs
True
T/F Notebook and netbook computers usually have a keyboard that is similar to a desktop keyboard, but it is typically smaller.
True
T/F PHOLED technology is especially appropriate for use on mobile devices, consumer electronics, and other devices where power consumption is an important concern.
True
T/F Speech recognition systems enable the device being used to recognize voice input as spoken word.
True
T/F The graphic tablet is typically connected to a computer via an USB port
True
T/F The term phosphorescence refers to a process that results in much more conversion of electrical energy into light instead of heat.
True
T/F The video card or the integrated graphics component determines the graphics capabilities of the computer.
True
T/F The video card or the intergrated graphics component determines the graphics capabilities of the computer.
True
T/F When comparing the zoom capabilities of a digital camera, look for optical zoom, not digital zoom specifications.
True
T/F With handwritten recognition, the computer interprets data handwritten with a digital pen as individual characters.
True
T/F Optical zoom specifications reflect how much the camera can zoom without losing image quality.
True
T/F TOLED displays are transparent
True
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
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
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 hat dware to support to use multiple monitors, such as the appropriate ____.
monitor ports
Stacey is the office manager er 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
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
T/F Automating the data entry process is referred to as source data automation.
true
T/F The graphic tablet is typically connected to a computer via a USB port
true
