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IT Theory Grade 10 > Module 3.3 > Flashcards

Module 3.3 Flashcards

1
Q

what is the internet

A

the internet is a worldwide computer network, consisting of computers and networks that are linked using telephone lines, undersea cables, satellite or microwave for the purpose of communicating and sharing of resources

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2
Q

what does IP stand for

A

internet protocol

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3
Q

what does an IP address consist of

A

4 sets of digits separated by dots

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4
Q

4 things needed to connect to the internet

A
  1. computer/internet enabled device
  2. internet service provider (ISP)
  3. internet connection
  4. wired/wireless connection
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5
Q

what is an ISP

A

company that has a permanent, fast connection to the internet which sell their internet access and services for a monthly fee

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6
Q

examples of ISP

A

MWEB, TelkomSA, MTN, Internet Solutions

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7
Q

what is bandwidth or data transfer

A

total amount of data that can be carried from one point to another in a given period of time

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8
Q

how is bandwidth measured

A

bits per second: kilobits pers second(Kbps), megabits per second(Mbps)

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9
Q

what is broadband

A

any permanent, high speed, high bandwidth connection to the internet

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10
Q

what does ADSL stand for

A

asymmetrical digital subscriber line

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11
Q

what is an ADSL

A

permanent digital connection to the internet using telephone line, connection split into phone calls and internet

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12
Q

how do you get ADSL

A

a modem or router used connect your computer to an ADSL line that is rented from telecommunications provider

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13
Q

why is there more bandwidth for download than upload speed

A

need higher speed to download web pages, music or video files than needed to send an email (tend download more than upload)

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14
Q

breakdown the costs of ADSL

A
  1. monthly ISP cost
  2. cost rental line
    *dont pay connection time to internet but pay telephone calls at normal rate
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15
Q

2 characteristics of ADSL

A
  1. access internet and make phone calls at same time
  2. check availability of service from ISP as there is not coverage in every area
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16
Q

what is your ‘cap’

A

ISPs offer different packages which offer different, limited amounts of gigabytes of data to be downloaded and uploaded in a month, the limited amount is referred to as your cap

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17
Q

What is the world wide web

A

service runs on the internet and is a vast collection of interlinked, interactive documents stored on computers all over the world, accessed via the internet

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18
Q

briefly describe HTML

A

HyperText Markup Language, supports links other documents as well as graphics, audio and video files

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19
Q

what is a web page

A

any electronic document on the web

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20
Q

what is a website

A

consists of related web pages and is maintained by organisation such as a school or a company

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21
Q

what is a hyperlink

A

built-in connection to another related web page and indicated by text underlined in blue/blue outline. ‘bridges linking sites on the web

22
Q

what is a web server

A

computer hosts websites and is connected to the web

23
Q

what is a webmaster

A

a person who maintains and develops a website on an ongoing basis

24
Q

what is the function of world wide web consortium (W3C)

A

develop standards so that WWW reaches full potential and ensure long-term growth

25
Q

URL:

A

uniform resource locater

26
Q

what is a URL

A

alpha-numerical address used identify resources like web pages, documents, files that are stored on web servers on the web

27
Q

where is the URL entered

A

address bar of a web browser

28
Q

IP

A

internet protocol: used for communication over a network or the internet

29
Q

HTTP

A

HyperText Transfer Protocol: defines how many pages transferred on web (automatically added in by browser)

30
Q

HTTPS

A

shows site is secure

31
Q

SMTP

A

Simple Mail Transfer Protocol: used for email transmission over internet

32
Q

FTP

A

File Transfer Protocol: used fast, easy transfer of files between remote computers have internet connection

33
Q

VoIP

A

Voice over Internet Protocol: manage delivery of voice information over internet

34
Q

12 types of websites

A
  1. portal website
  2. news website
  3. informational website
  4. business/marketing
  5. personal
  6. weblog (blog)
  7. social networking
  8. wiki
  9. educational
  10. entertainment
  11. advocacy
35
Q

what is an advocacy website

A

describes opinion, idea or cause and usually presents views particular group/association

36
Q

what is a portal website

A

(link pages) - offer selection Internet services from one convenient location .eg. MWEB, Google, Yahoo

37
Q

what is a (we)blog

A

websites updated often with news and events, reads like a journal

38
Q

what is a wiki website

A

allows people create and edit web content collaboratively , anyone contribute

39
Q

what is a web application

A

any application accessed over internet and not stored on your local computer

40
Q

examples of web applications

A
  1. Gmail
  2. Kalahari.net
  3. eBay
41
Q

what is a content aggregator

A

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

42
Q

2 main types of content aggregator

A
  1. gathers information and displays on own website
  2. gathers information and distributes it, subscribe choose what information you want to receive
43
Q

what is syndication

A

when you receive notification of updates as they become available

44
Q

RSS

A

real simple syndication

45
Q

6 ways to evaluate a website

A
  1. authority: credentials of author, type of institution
  2. accuracy: site offer selected list of sources
  3. content/design: easy navigate, well organised, user-friendly
  4. audience: satisfy needs
  5. currency: up-to-date
  6. objectivity: is it unbiased
46
Q

what is a web browser

A

software application allows user view and explore webpages on web via hyperlinks or URLs

47
Q

examples of web browser

A
  1. Google Chrome
  2. Apple Safari
  3. Internet Explorer (Microsoft Edge)
  4. Mozilla Firefox
48
Q

what is a search engine

A

program used search for documents located on WWW by using keywords or phrases entered by user when looking for information

49
Q

how do search engines work

A

use programs called spiders or robots to crawl web and log keywords from web pages for which searchable databases are compiled which is then scanned. if word or phrase found called ‘hit’. hits returned to user order of relevance

50
Q

examples of search engines

A
  1. www.google.com
  2. www.yahoo.com
  3. www.bing.com
  4. www.ask.com
51
Q

5 steps for successful searching

A
  1. state exactly what you want to find
  2. identify keywords
  3. use synonyms
  4. check your spelling
  5. use advanced search options

IT Theory Grade 10 (14 decks)

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