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IT - UNIT 2 > LO1 - Global Information > Flashcards

LO1 - Global Information Flashcards

1
Q

Who are the Holders of Information

A
  • Individuals
  • Business Organisations
  • Government
  • Healthcare services
  • Charities/ Communities
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2
Q

Examples of where Data is held

A
  • Developed/ Developing countries
  • Urban/ Rural areas
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3
Q

What is Digital Divide

A

The difference in access to digital resources in different areas of the world

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4
Q

What are the Types of Information Storage Media

A
  • Paper
  • Optical Media (CD DVD)
  • Magnetic Media (Hard Drives)
  • Solid State Media (SSD CARD)
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5
Q

About Optical media

A
  • key use is for software distribution
  • they are written and read by a laser
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6
Q

About paper

A
  • Can be easily damaged when handled
  • Costs a lot to transport
  • Can be hard to keep secure
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7
Q

About Magnetic Media

A
  • uses magnetic patterns to store data
  • can be stored externally
  • can be stored on tapes
  • frequently used for backup/ archiving
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8
Q

About Solid State Media

A
  • stores in circuitry
  • speed is good
  • doesn’t require air cooling
  • they lack moving parts - so don’t overheat
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9
Q

Characteristics of storage media

A
  • Mutability
  • Robustness
  • Access to Data
  • Cost
  • Storage Capacity
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10
Q

Mutability

A

ability to change

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11
Q

Robustness

A

Solid state Media -
No moving parts
less likely to be damaged if dropped

Hard Drives -
rely on internal spinning disks
frequently damaged when dropped

Magnetic Media -
If placed near magnets - info held can be inaccessible

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12
Q

Cost

A

Paper - is cheap but delivery is expensive

Hard Drives - cheaper but slower than SSD cards

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13
Q

Purpose of Storage Media

A
  • is to store data/ information
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14
Q

Advantages + Disadvantage of Storage media

A

SSD - robust
Magnetic Hard Disc - less likely to be dropped
= cheap

CD are cheap therefore can be disposed after using temporarily

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15
Q

Types of info access and storage devices

A
  • handheld
  • portable
  • shared
    fixed
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16
Q

Characteristics of storage + access devices

A
  • processing power
  • versatility
  • storage capacity
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17
Q

Purpose of storage +access devices

A

Handheld devices - tasks that don’t need high processing power

Laptop - tasks can require high processing power

18
Q

Type of internet access

A
  • dial up
  • broadband
  • fixed broadband
  • fixed wireless
  • satellite
  • wireless hotspot
  • mobile phones
19
Q

type of connection

A

copper cable - electrical conductivity of copper, low cost, popular

optical fibre - uses strands of glass, data is transferred as pulses of light

20
Q

types of WWW Technology network

A

HTTP
URL
HTML

21
Q

Types of WWW technology

A

Intranet
Internet
Extranet

22
Q

What is Internet

A

is worldwide network of interconnected networks

public
open access

23
Q

purpose of internet

A

a webpage on the internet provides customers with access to info they need

24
Q

What is intranet

A

a private network
only accessible to authorised users
closed access

25
Q

What is Extranet

A

private network
accessible using the internet but provides access only to authorised users
shared access

26
Q

What is extranet

A

private network
accessible using the internet but only accessible only to authorised user
shared access

27
Q

example of extranet

A

hotel booking companies

28
Q

Network Characteristics

A

speed
security
access levels
accessibility

29
Q

Types of Information Formats

A

web pages
blogs
podcasts
streamed audio/video
social media
emails
document stores
RSS feeds

30
Q

Web pages

A

STATIC -
contain content that is prebuilt + remains the same each time the page is loaded

cheaper
easier to create
loads quicker
appears same for everyone

DYNAMIC -
are generated when they are loaded
appear differently for everyone
harder to code

31
Q

Blogs

A

ADVANTAGES
share information (text, images + videos)
unite with similar interests

DISADVANTAGES
takes a lot of effort + time
have to update regularly
difficult to build a customer base

32
Q

Podcasts

A

a downloadable audio file

ADVANTAGES
aren’t recorded live
listen when convenient
are more popular
audience is increasing

DISADVANTAGES
takes time to record/ edit
difficult to build audience
have to be innovative

33
Q

streamed audio + video

A

a process of receiving video/audio data in a continuous flow

ADVANTAGES
doesn’t require data - can be downloaded
harder for users to share
piracy protection

DISADVANTAGES
requires high bandwidth
may suffer performance issues
requires a constant internet connection

34
Q

Social media

A

ADVANTAGES
online presence
posts can be shared within users
different info styles
communication

DISADVANTAGES
negative posts spread quickly
can damage repuatation

35
Q

Emails

A

ADVANTAGES
faster
cheaper
files can be attached
convenient

DISADVANTAGES
need internet connection
malware can spread - risk of phishing
spam

36
Q

Document stores

A

allows users to store online files in cloud storage

are convenient
accessible

need internet connection
need an account

37
Q

RSS feeds

A

Rich Site Summary
— allows users to subscribe to updates from fave webs

38
Q

Advantages of Internet (individuals)

A

increased speed of personal communication - instant messaging

Easy access to info - free resources

24/7 access to services - shopping, browsing + banking when convenient

social interaction w others - provides entertainment

39
Q

Disadvantages of internet (individual)

A

potential for identity theft - uploading personal data

cost of connection and services - internet providers charge monthly fees

source of distraction - students neglect work for entertainment

cyberbullying + trolling - abuse of social media (anonymity)

spreading misinformation - biased information

40
Q

Advantages of internet (organisations)

A

share data quickly - cloud storage

online services always available - ecommerce

easy internal communication - staff can use email

open up to the workplace - can work from home

41
Q

Disadvantages of internet (organisations)

A

Malicious attacks/ threats - websites can be hacked

cost of maintaining services- require iT department

reputation and controversies - data leaks, social media

IT - UNIT 2 (3 decks)

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