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Grade Ten Flashcards > CAT term 2 (theory) > Flashcards

CAT term 2 (theory) Flashcards

1
Q

what is a computer

A

a multi purpose portable electronic device
eg. laptop, tablet, smartphone

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2
Q

what is hardware

A

physical parts of a computer
eg. mouse, monitor, keyboard

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3
Q

what is software

A

specific instructions we give the computer to get it to do something useful

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4
Q

what is a multi purpose tool

A

ability to run different types of programs

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5
Q

why are smartphones considered computers

A

it has apps that enable it to do way more than phone calls

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6
Q

what is the information processing cycle

A

input - processing of data - output - storage

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7
Q

explain the IPC

A

input from the keyboard or mouse, information is processed and produces an output on the screen or printer which is usually stored.

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8
Q

what is data

A

unprocessed items eg. text, numbers, images

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9
Q

what is information

A

result of processing data, should be useful

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10
Q

what is the booting process

A

operating system automatically loads when the computer is switched on.

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11
Q

what is the desktop

A

screen of the operating system that includes icons, start button, quick launch task bar

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12
Q

what is GUI

A

graphical user interface

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13
Q

what are the common features of a program

A

an area of the screen is sued to display the feedback or output of a program this is defined as a window.

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14
Q

what is application software

A

group of programs that perform specific tasks for users eg. Microsoft word

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15
Q

what is system software

A

software that is intended to control, support or operate the computer
eg. operating system - windows/ apple mac OS

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16
Q

what are the functions of an operating system

A

manages all hardware and software
maintains security
provides an interface

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17
Q

what is an interface

A

important part of the operating system
-all the content of the screen is arranged and presented
- desktop is personalized
apps are represented by the icons

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18
Q

what are the short cut keys

A

ctrl c for copy
ctrl s for save

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19
Q

what is the dialog box

A

conveys a message and contains
-tab in dialog
-combo and list box
-check box

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20
Q

what are the utilities

A

snipping tool and calculator

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21
Q

what is a program

A

set of instructions loaded into memory

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22
Q

what are commands

A

given by the user

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23
Q

what are ports

A

sockets used to connect peripherals to the computer

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24
Q

what is plug and play

A

detects and configures a device

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25
Q

what is a monitor output

A

also known as an lcd or led
is measured in inches diagonally

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26
Q

what is a monitor output

A

also known as an lcd or led
is measured in inches diagonally

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27
Q

what are the differnces between an inkjet printer and a laser printer

A

inkjet
sprays ink, cheaper and slower
laser
works like a photo copier, is more expensive and is faster

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28
Q

what is a hard drive

A

main and large device located within a computer

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29
Q

what is a flash drive

A

uses electronic memory to store data- powered by USB

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30
Q

what is rsi

A

repetitive strain injury

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31
Q

what prevents rsi

A

ergonomically designed equipment

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32
Q

what are three health tips for using computers

A

ergonomic equipment
sitting correctly
adequate lighting

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33
Q

what is green computing

A

switch off unused computers
avoid wasting paper
repair broken hardware

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34
Q

how to set up a file name

A

name dot extension

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35
Q

what is a file path

A

sequence of folders starting from drive letter separed by / and file location

36
Q

what is the recycle bin

A

holds files deleted from local hard drive

37
Q

what are short cuts

A

created to point a file out
ctrl x cut
ctrl c copy
ctrl v paste
ctrl a select all

38
Q

how to convert file types

A

save as —- save as type
this converts it to another file type

39
Q

what does a desktop contain

A

mouse keyboard screen and box with cpu memory and storage

40
Q

what is a server

A

provides resources and services

41
Q

what are dedicated devices

A

devices designed to do one thing
eg. mp3 players
gps trackers

42
Q

what is ICT

A

INFORMATION COMMUNICATION AND TECHNOLOGY
its a combination of hardware software data processing and people

43
Q

what is a point of sales system

A

uses barcodes or scanning
its more accurate

44
Q

how can ICT be used unethically

A

theft, spreading false info, malicious software

45
Q

what is integrated software

A

microsoft office
it separates packages that has a similar interface
separates packages designed to share and exchange data.
sold as a suite of problems

46
Q

what is proprietary software

A

owned by someone and may only be provided under license agreement

47
Q

what is EULA

A

end user licensing agreement
legal agreement describing what can and cant be done with the software

48
Q

what is single user license

A

can only install one copy

49
Q

what is site license

A

allows one company an unrestricted number of installments of software within the company

50
Q

what is freeware

A

fully functioning software that can be used without restriction.

51
Q

what is shareware

A

restricted software that should be paid for after its free trial

52
Q

what is open source software

A

software that may be freely used, modified and distributed but NOT sold
eg. java Linux open office

53
Q

what are utility programs

A

used to assist the user perform maintenance tasks

54
Q

what is compression

A

process of creating a copy or more files which are smaller eg. winzip compresses and decompresses files.

55
Q

what is a driver

A

software that allows your computer to communicate with hardware devices

56
Q

what are pointing devices

A

trackball, pen, touch

57
Q

what are sensors

A

built into mobile devices

58
Q

what’s an accelerometer

A

detects movement such as screen orientation

59
Q

what are temperature sensors

A

safeguards electronics

60
Q

what is optical media

A

CD/ DVD/ mainly used for media and games

61
Q

what is a motherboard

A

large circuit board that allows all other parts to connect to it and communicate via it.

62
Q

what is CPU

A

Central Processing Unit- PROCESSES DATA AND CARRIES IINSTRUCTIONS OUT

63
Q

what is RAM

A

random access memory- large working memory

64
Q

what is ROM

A

read only memory - smaller

65
Q

what is network

A

a collection of computers and other devices that are connected either via cable or wirelessly

66
Q

what is a server

A

powerful computer that provides shared resources in a network

67
Q

what is the internet

A

a global network consisting of many networks that are connected to each other

68
Q

advantages of the internet

A

communication
leisure
sharing resources

69
Q

disadvantages of the intenet

A

data is vulnerable
expensive to set up
harmful software

70
Q

two examples of open source office suites

A

openoffice and libreoffice

71
Q

winZip and winRar

A

compression utility programmes

72
Q

blu ray

A

optical disc format designed to enable recording, rewriting and playback of HD videos as well as storing large amounts of data

73
Q

Magnetic Ink Character Recognition (MIRC)

A

technology that enables a machine to read characters such as bank numbers on a cheque

74
Q

software piracy

A

illegal installation, copying and distributing of proprietary software

75
Q

multi function printer

A

is an all-in-one device which can print, scan, photocopy and fax

76
Q

optical mark recognition

A

process of capturing marks made by a human

77
Q

speed measurement (GHz)

A

Gigahertz is the unit in which the speed of CPU is measure
-one GHz represents 1 billion cycles per second

78
Q

what’s botnet

A

group of compromised computers connected to a network such a as f internet and controlled remotely to attack other networks

79
Q

what’s hackers and crackers

A

computer criminals who break into computer systems either for recognition (hackers) or with criminal intent (crackers)

80
Q

what is ADSL (asymmetric digital subscriber line)

A

permanent digital connection to the internet using the telephone line

81
Q

what’s a content aggregator

A

website or application that gathers different web content from many different online sources

82
Q

what is HTML (HyperText Markup Language)

A

language in which web pages are written
-this language supports links to other documents

83
Q

what a Internet Protocol Address (IP address)

A

unique address of every computer connected in a network or to the internet

84
Q

what’s an internet service provider (ISP)

A

a company that is permanent, fast connection to the internet
-sells internet services to individuals or organisations for a monthly fee

85
Q

what’s an URL (uniform resource locator)?

A

an alpha-numerical address used to identify resources such as web pages, documents and files stored on web servers on the web

86
Q

what netiquette

A

internet etiquette

87
Q

what’s a computer worm

A

malware that is able to distribute itself over a network

Grade Ten Flashcards (17 decks)

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