Exam 7: Input/Output Technology

____________________ touchscreen input interprets a sequence of touch information as a single command

A collection of characters of similar style and appearance is called a ____.

Modern bar codes encode data in three dimensions.

____ output is only able to generate one frequency (note) at a time.

A(n) ____ detects specific patterns of bars or boxes.

Decades ago, printers adopted 1/32 of an inch as a standard pixel size.

A ____ is a printer that generates line drawings on wide sheets or rolls of paper.

____________________ dithering is usually called half-toning.

Postscript is a(n) ____________________ designed mainly for printed documents, although it can also be used to generate video display outputs.

Typically, digital cameras capture 14 to 20 fps.

The number of distinct colors or gray shades that can be displayed is sometimes called the ____.

The term ____________________ describes hardware that can generate multiple sound frequencies at the same time.

A(n) ____ accepts a continuous electrical signal representing sound (such as microphone input), samples it at regular intervals, and outputs a stream of bits representing the samples.

Human speech consists of a series of sounds called ____, roughly corresponding to the sounds of each letter of the alphabet.

To an observer, the quality of a printed or displayed image increases as ____________________ size increases.

Why do modern systems typically use 2D bar codes instead of more traditional bar codes composed of lines of varying thickness.

For sound reproduction that sounds natural to people, frequencies between 20 Hz and 20 KHz must be sampled at least 96,000 times per second.

The process of converting analog sound waves to digital representation is called ____.

When keys are pressed, a keyboard controller generates output called a(n) ____________________.