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Business Information Systems I > A Connected World > Flashcards

A Connected World Flashcards

1
Q

Define the Internet

A

The internet is a worldwide collection of millions of computrs and networks of all sizes. It is a network of networks.

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2
Q

How did the internet start and in which year did this happen?

A

1969
The US Department of Defense started a project called the Advanced Research Projects Agency Network (ARPANET) which connected several nodes to backbone nodes, which eventually developed into the Internet.

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3
Q

The Internet backbone

A

A foundation of network linked with fiber-optic cables that can support very high bandwith. It is made up of many interconnected government, academic, commercial, and other high-capacity data routes

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4
Q

Hypermedia

A

Documents including embedded references to audio, text, video and other documents.

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5
Q

Hypertext

A

The embedded references in hypermedia documents are called hypertext which consist of links users can click to follow a particular threat/topic.

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6
Q

Domain Name System (DNS)

A

Converts domain names to IP addresses when info is transferred from network to network. Servers using DNS have lists of computers’ and Web sites’ addresses and associated IP addresses.

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7
Q

Uniform Resource Locators (URLs)

A

Identifies web pages. The address of a document or site on the internet. Also called universal resource locators

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8
Q

Top-level domain (TLD)

A

Denotes the type of organization of country specified by the IP address.

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9
Q

ccTLD

A

Geographical TLD (country code TLD)

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10
Q

gTLD

A

Organizational TLD (generic TLD)

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11
Q

The four new gTLD categories

A

Generic word TLDs
Corporate TLDs
Community TLDs
Geographic TLDs

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12
Q

Three types of DSL services and their data transmission rates

A

Symmetric DSL (SDSL) - 1.5 Mbps up and down
Asymmetric DSL (ADSL) - 3.5 Mbps up, 24 Mbps down
Very high-speed DSL (VDSL) - 100Mbps up and down

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13
Q

T1 lines

A

Two pairs of copper wires and carries up to 24 simultaneous converssations (channels). 1.544Mbps
More widely used than T3

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14
Q

T3 line

A

Digital communication link, supports transmission rates of 43-45 Mbps and 672 channels

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15
Q

Navigational tools

A

Used to travel from website to website.

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16
Q

Search engine

A

An information system that enables users to retrieve data from the web by using search terms.

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17
Q

Directories

A

Indexes of information based on keywords embedded in documents, which make it possible for search engines to find what you are looking for

18
Q

Common features of navigational tools

A

Menu options
Browsing history
Bookmarking favourite websites
Viewing preferences
Navigation buttons
Sometimes specialized toolbars

19
Q

Three step process of search engines

A
  1. Crawling the web
  2. Indexing
  3. Searching
20
Q

What are crawlers and what do they do?

A

Automated modules that search the web continuously for new data and sends this data back to the search engine’s data center.

21
Q

What is indexing in search engines?

A

At server farms, search engines use keywords to index data coming in from crawlers. Each keyword has an index entry that is linked to all web pages containing that keyword.

22
Q

What is searching in search engines?

A

The search engine uses the index to look up the search term entered into it and displays all relevant web pages.

23
Q

Graph Search

A

Allows Facebook users to find people, photos, places and interests that are relevant to them.

24
Q

Knowledge Graph

A

Panels containing important facts relative to the results and search terms.

25
Q

How do the two different types of directories on the web differ?

A

Automated/crawler-based directories use crawlers, which update the indexes and databases automatically when a website is updated. Human-powered directories use people to manually submit data, which means that it is not automatically updated when the website changes.

26
Q

Name four types of internet services

A

E-mail
Newsgroups and discussion groups
Internet telephony
Instant messaging (IM)

27
Q

E-mail

A
  • one of the most widely used services on the internet
  • business or personal use
  • reduces costs in business communication
  • more environmentally friendly than using paper
28
Q

Two types of e-mail

A

Web-based email: access from any computer, sometimes storage available for emails on web server
Client-based email: installed on computer, emails stored locally (downloaded)

29
Q

Newsgroups

A

General in nature, allows people to get together for business or fun.

30
Q

Discussion groups

A

Usually for exchanging ideas and opinions on a specific topic of a technical/scholarly nature. Group members post messages or articles that others in the group can read.

31
Q

Instant messaging (IM)

A

A service for communicating with others via a private chat room on the internet. It can be a private message between individuals, with a group or with a broader audience.

32
Q

Internet telephony

A

Using the internet rather than the telephone network to exchange spoken conversations. Uses VoIP

33
Q

VoIP (Voice over Internet Protocol)

A

Protocol used for internet telephony.

34
Q

What are the advantages of using VoIP?

A
  • no busy lines
  • voicemails can be received on a computer
  • users can screen callers even with blocked ID
  • calls forwarded from anywhere globally
  • calls can be directed to different departments
35
Q

Web applications in tourism and travel

A
  • booking tickets
  • hotel and car reservations
  • advice and reviews
36
Q

Web applications in publishing

A
  • descriptions of forthcoming books
  • sample modules
  • online ordering
  • search features for looking up books
  • buying e-books or subscriptions
37
Q

Web applications in higher education

A
  • info about departments, programs, faculty, academic resources
  • virtual tours
  • entire degree programs online
  • seminars
38
Q

Web applications in real estate

A
  • up to date listings of homes for sale
  • virtual house tours
  • appraisals, neighbourhood/school profiles
  • financinf options
  • home improvement advice
39
Q

Web applications for employment

A
  • advice/tools for career management
  • resume assistance
  • job search tutorials
  • resume posting/distributing
  • job searches by category
  • career tests
  • job fair announcements
  • salary calculators
40
Q

Web applications for financial institutions (online banking)

A
  • emailing account statements/ financial reports
  • up to date account info and balances
  • customer service around the clock
  • viewing current/old transactions
  • online mortgage applications
  • designing savings plans
  • paying bills
  • transferring funds
41
Q

Web applications for health care

A
  • storing patient records
  • ordering lab tests and prescriptions
  • admission of patients
  • referring physicians
  • health information
  • telemedicine
  • telepresence surgery
42
Q

Web applications in politics

A
  • web sites for campaigns
  • announcing candidates platforms
  • publicizing voting records
  • raising campaing funds
  • online voting

Business Information Systems I (3 decks)

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