Quiz: Chapter 4 Weekly Quiz Computer Info. Systems

____ 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

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

True

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

monitor

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

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

Joysticks are headphones with a built-in microphone. _________________________

False

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

False

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

False

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

False

Printers produce soft copy.

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

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

Flatbed scanners

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

Ink-jet printers

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

OLED

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

True

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

True

Digital camcorders are similar to conventional ____ camcorders.

analog

CRT monitors use ____.

analog signals

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

bit depth

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

dots per inch (dpi)

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

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

Some 3D projectors are designed to project ____.

holograms

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