Exam 4: Input and Output

Describe the common features and uses of portable scanners.

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

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

____________________ is the science of identifying individuals based on measurable biological characteristics.

A(n)____ is a flat,touch-sensitive device used in conjunction with a digital pen.

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

____________________ are used in consumer kiosks,point-of-sale (POS)systems and are useful for on-the-job applications,such as in factories,where using a keyboard or mouse is otherwise impractical.

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

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

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

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.

____ 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.

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

COMPLETION -The figure above shows a mobile device with a(n)____________________ keyboard.

____________________ displays use a layered technology like LCD and OLEDs,but they use a layer of gas between two plates of glass instead of liquid crystals or organic material.

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

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

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

Scanners produce images through either impact or nonimpact technologies.

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.