ITGS Ch. 8 1-28 Terms

Question 0

Analog-to-Digital Converter Chip

Answer 0

Converts analog signals to digital signals

Question 1

Analog

Answer 1

Waves that illustrate the loudness of a sound or the brightness of the colors in an image at a given moment in time

Question 2

Base Transceiver Station

Answer 2

A large communications tower with antennas, amplifiers, and receivers/transmitters

Question 3

Bluetooth

Answer 3

Type of wireless technology that uses radio waves to transmit data over short distances (approximately 3-300 feet depending on power); often used to connect peripherals such as printers and keyboards to computers or headsets to cell phones

Question 4

Cellular (Cell) Phone

Answer 4

A telephone that operates over a mobile network; can offer Internet access, text messaging, personal information management (PIM) features, and more

Question 5

Codec

Answer 5

A rule, implemented in either software or hardware, which squeezes a given amount of audio and video information into less space

Question 6

Copyleft

Answer 6

A simplified licensing scheme that enables copyright holders to grant certain rights to a work while retaining other rights

Question 7

Data Plan

Answer 7

A connectivity plan or text messaging plan in which data charges are separate from cell phone calling charges and are provided at rates different from those for voice calls

Question 8

Digital Convergence

Answer 8

The use of a single unifying device to handle media, Internet, entertainment, and telephony needs; expressed in the range of devices now on the market

Question 9

Digital Rights Management (DRM)

Answer 9

A system of access control that allows only limited use of material that has been legally purchased

Question 10

Digital Signal Processor

Answer 10

A specialized chip that processes digital information and transmits signals very quickly

Question 11

Electronic Ink (E ink)

Answer 11

A very crisp, sharp grayscale representation of text achieved by using millions of microcapsules with white and black particles in a clear fluid

Question 12

Electronic Text (e-text)

Answer 12

Textual information stored as digital information so that it can be stored, manipulated, and transmitted by electronic devices

Question 13

E-reader

Answer 13

A device that can display e-text and that has supporting tools, like note taking, bookmarks, and integrated dictionaries

Question 14

Feature Phone

Answer 14

Inexpensive cell phones with modest processors, simple interfaces, and, often, no touch screens

Question 15

Global Positioning System (GPS)

Answer 15

A system of 21 satellites (plus 3 working spares), built and operated by the U.S. military, that constantly orbit the earth; satellites provide information to capable devices to pinpoint locations on the earth

Question 16

High Definition (HD)

Answer 16

A standard of digital TV signal that guarantees a specific level of resolution and a specific aspect ratio, which is the rectangular shape of the image

Question 17

Mobile Switching Center

Answer 17

A central location that receives cell phone requests for service from a base station

Question 18

Multimedia Message Service (MMS)

Answer 18

An extension of SMS that lets you send messages that include text, sound, images, and video clips to other phones or e-mail addresses

Question 19

Peer-to-peer (P2P) sharing

Answer 19

The process of users transferring files between computers

Question 20

Resolution

Answer 20

The clearness or sharpness of an image, which is controlled by he number of pixels displayed on the screen

Question 21

Sampling rate

Answer 21

The number of times per second a signal is measured and converted to a digital value; measured in kilobits per second

Question 22

Short Message Service (SMS)

Answer 22

Technology that enables short text messages (up to 160 characters) to be sent over mobile networks

Question 23

Synchronizing (or syncing)

Answer 23

The process of updating data on portable devices (such as a cellphone or iPod) and a computer so that they contain the same data

Question 24

Telephony

Answer 24

The use of equipment to provide voice communications over a distance

Question 25

Tethering

Answer 25

Approach which makes sure that as long as you have a 3G signal, your computer can access the Internet even when it tells you there are no available wireless networks; offered capability on several smartphones

Question 26

Voice over Internet Protocol (VOIP)

Answer 26

Skype

Question 27

Wireless Internet Service Provider (wireless ISP)

Answer 27

An ISP that provides service to wireless devices such as smartphones