Exam 5: Hardware: Input and Output: Taking Charge of Computing and Communications

Printed output is referred to as __________; a monitor's displayed information is ________.

An audio signal can be digitized in two ways: a sound board and MIDI board.

Scanner resolution is measured in dots per inch; the farther apart the dots,the clearer the image.

A device that is rolled about on a desktop and directs a pointer on the computer's display screen is called a(n)__________.

What are pointing devices used for?

Security devices that identify a person through fingerprint,voice-integration,or retinal identification are examples of which technology?

A device that converts letters,numbers,and other characters into electrical signals so the computer's processor can understand them is called a(n)__________.

The purpose of ergonomics is to make working equipment faster.

Keyboards,microphones,mice,and light pens are _________ devices.

What do source data-entry devices do?

If you want to scan pages of a book into a format that you can edit on your computer,you need ________ software.

What do bar-code readers do?

Which device uses light-sensing (optical)equipment to convert images of text,drawings,and photos into digital form?

What is color depth?

A keyboard changes letters,numbers,and other characters into electrical signals so the computer's processor can understand them.

Which of the following is NOT an input device?

The closer the pixels on a screen,the crisper the image.

The only data format that computers can "read" consists of binary 0s and 1s.

Waves of electrical energy and magnetic energy emitted by cellphones are called __________.

Computers use video cards to display images on monitors; video cards have their own memory,called __________.