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IT - UNIT 2 > LO1 - Global Information > Flashcards

LO1 - Global Information Flashcards

(41 cards)

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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

Study These Flashcards
A

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

Laptop - tasks can require high processing power

18
Q

Type of internet access

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

type of connection

Study These Flashcards
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

21
Q

Types of WWW technology

Study These Flashcards
A

Intranet
Internet
Extranet

22
Q

What is Internet

Study These Flashcards
A

is worldwide network of interconnected networks

public
open access

23
Q

purpose of internet

Study These Flashcards
A

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

24
Q

What is intranet

Study These Flashcards
A

a private network
only accessible to authorised users
closed access

25
What is Extranet
private network accessible using the internet but provides access only to authorised users shared access
26
What is extranet
private network accessible using the internet but only accessible only to authorised user shared access
27
example of extranet
hotel booking companies
28
Network Characteristics
speed security access levels accessibility
29
Types of Information Formats
web pages blogs podcasts streamed audio/video social media emails document stores RSS feeds
30
Web pages
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
Blogs
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
Podcasts
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
streamed audio + video
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
Social media
ADVANTAGES online presence posts can be shared within users different info styles communication DISADVANTAGES negative posts spread quickly can damage repuatation
35
Emails
ADVANTAGES faster cheaper files can be attached convenient DISADVANTAGES need internet connection malware can spread - risk of phishing spam
36
Document stores
allows users to store online files in cloud storage are convenient accessible need internet connection need an account
37
RSS feeds
Rich Site Summary --- allows users to subscribe to updates from fave webs
38
Advantages of Internet (individuals)
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
Disadvantages of internet (individual)
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
Advantages of internet (organisations)
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
Disadvantages of internet (organisations)
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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