IB ITGS - 11. Environment

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61 Terms

1

ADC

Device for sampling analog data and producing a digital sample of it.

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2

analog data

Continuous data which can be measured, such as the temperature in the room.

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3

analog to digital converter

Device for sampling analog data and producing a digital sample of it.

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4

BAN

Environmental campaign group that works to reduce the problems caused by e-waste.

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5

Basel Action Network

Environmental campaign group that works to reduce the problems caused by e-waste.

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6

Basel Convention, The

Environmental agreement regarding e-waste.

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7

blade servers

Server design which is modular, allowing systems to be rapidly expanded and reducing power consumption.

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8

continuous data

Analog data which can be measured, such as the temperature in the room.

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9

CRT

Old, large TV style computer monitors.

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10

data centres

Large warehouses of computers that host hundreds or thousands of gigabytes of data.

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11

data layers

Layers of information added to a Geographical Information System.

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12

data logging

Automatic recording of data using sensors.

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13

digital data

Discrete data which can be counted.

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14

digital footprint

An individual's effect on the environment due to e-waste.

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15

digital divide

The idea that money, language, education, or infrastructure creates a gap between those who have access to information technologies and those who do not.

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16

digitisation

The process of converting analog data into digital computer data.

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17

discrete data

Discrete data which can be counted.

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18

donation schemes

Schemes used to find additional uses for obsolete computer equipment to extend it's useful life.

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19

e-waste

Discarded electronic equipment that is either broken or obsolete.

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20

electronic waste

Discarded electronic equipment that is either broken or obsolete.

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21

Geographical Information System

A system which allows layers of data to be placed on map data to visualise and analyse it. For example, crime rate figures can be layered on a map of a city.

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22

geotagged

Adding tags to data (such as an image) to identify the location in which it was created.

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23

GIS

A system which allows layers of data to be placed on map data to visualise and analyse it. For example, crime rate figures can be layered on a map of a city.

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24

Global Positioning System

System of satellites that allows a user to determine their position on Earth using a special receiver.

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25

GPS

System of satellites that allows a user to determine their position on Earth using a special receiver.

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26

GPS receiver

Part of the GPS system which calculates its distance from satellites in space.

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27

laser imaging

Remote imaging method that users laser light, often used by satellites.

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28

LCD

Newer style "flat screen" monitors.

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29

LEDC

Countries to which electronic waste is often shipped for unsafe recycling and disposal.

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30

Less Economically Developed Country

Countries to which electronic waste is often shipped for unsafe recycling and disposal.

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31

Lidar

Remote imaging method that users laser light, often used by satellites.

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32

life cycle (hardware)

For computer hardware, the period of time from its manufacture, through its use, until its eventual disposal.

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33

location based service

Any service (e.g. web page content) which varies according to the user's location.

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34

MEDC

Countries which are often a significant source of electronic waste.

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35

More Economically Developed Country

Countries which are often a significant source of electronic waste.

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36

planned obsolescence

Idea that IT equipment is designed to have a short life expectancy before failing or becoming obsolete.

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37

power settings

Operating systems to affect the power consumption of a computer.

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38

radar

Remote imaging method used by satellites.

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39

recycling

The process of reclaiming valuable elements from waste electronic equipment, often done unsafely in developing countries.

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40

reduce

The 'R' concerned with preventing e-waste problems by producing less waste equipment and using fewer harmful chemicals.

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41

redundant systems

System which will take over the role of a primary system if it fails.

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42

remote sensing

Techniques used by satellites to image the Earth.

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43

refurbish

The 'R' concerned with finding additional uses for equipment which is obsolete but not broken.

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44

reuse

The 'R' concerned with finding additional uses for equipment which is obsolete but not broken.

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45

RoHS

A law which limits the harmful chemicals that manufacturers are allowed to put into their electronic equipment.

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46

Reduction of Harmful Substances

A law which limits the harmful chemicals that manufacturers are allowed to put into their electronic equipment.

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47

sample precision

During digitisation, the number of bits used to represent each sample.

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48

sample rate

During digitisation, the number of samples taken per second.

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49

sampling

The process of converting analog data into digital computer data.

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50

sat nav

Portable GPS receiver device often used in vehicles.

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51

satellite imaging

The use of sensors on satellites to measure or record information, usually about the Earth.

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52

satellite navigation system

Portable device that uses GPS to plot the user's position.

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53

sensors

Input devices used to measure physical traits, such as sound, heat, or light.

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54

sonar

Remote imaging method used by satellites.

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55

speed throttling

Reducing a processor's clock speed to save power when not in use.

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56

take-back scheme

Scheme operated by IT manufacturers to accept customers' old hardware for recycling at its end of life.

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57

virtual globe

A 3D software map of the Earth, usually with layers of information added, similar to a GIS.

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58

virtual machines

A software implementation of a computer system, allowing one physical computer to run several "virtual computers", each with their own independent operating system and application software.

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59

virtualisation

The process of using several virtual machines running on one computer to replace several separate physical computers.

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60

visualisation

Producing graphs or animations based on computer data, to help understand and analyse it.

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61

WEEE

A European law which requires electronic equipment manufacturers to accept back their equipment for recycling at its end of life.

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