LO1 + LO2 Flashcards
Identify the main 6 holders of information
Business
Government
Individual
Education
Healthcare
Charity
What is the digital divide
The digital divide is the gap between people who do and do not have easy access to computers and networks
methods of storing data
magnetic
optical
solid state
paper
Advantages and disadvantages of Magnetic
Adv:
Large capacity
Relatively quick access speed
disadv:
Not durable
not portable
Advantages and disadvantages of Optical
Adv:
thin discs and portable
disadv:
Low capacity
not durable
slowest access speed
Advantages of Solid state
adv:
high capacity
durable
small size + portable
Fastest access speed
Advantages and disadvantages of Paper
adv:
portable
disadv:
low capacity
poor durability
slow access speed (if storage isnt organised efficiently)
handheld devices
Smartphone
E-reader
smartwatch
small tablet
portable devices
Laptop
large tablet
fixed devices
desktop
games consle
smart tv
shared devices
cloud storage
data centre
database server
Advantages and disadvantages of portable devices
adv:
light and portable - easily transported
battery powered - no need for outlets
more powerful than handhelds
disadv:
lower processing power
reliant on their batter power
Advantages and disadvantages of handheld devices
adv:
light
portable
batter powered
disadv:
low processing power
reliant on their batter power
more likely to be lost/stolen
small memory/storage
Advantages and disadvantages of fixed devices
adv:
highest processing power
sufficient cooling systems
large storage capacity
can be upgraded
disadv:
reliant on a power outlet
difficult to move
expensive
Advantages and disadvantages of shared devices
adv:
accessible by multiple users at the same time
24/7
frees up physical space
authorised users can access info or work remotely
disadv:
reliant on a stable network connection
no connection = no access
setting up requires technical knowledge
wired connection methods
copper cables
fibre optic cables
wireless connections
bluetooth
microwave
satellite
5G / GSM
Connection characteristics
Strength
range
latency
bandwidth
storage capacity
contention
Define intranet and extranet
intranet - private network only accessible to authorised users (closed access)
extranet - private network that is accessible using the
internet but provides access only to authorised users
(a private network with access to a public network)
Network characteristics
Speed
security
access levels
accessibility
Information formats
Static web pages
dynamic web pages
blogs
vlogs
podcasts
streamed audio + video (streaming services)
social media
email
document stores
RSS feeds
Advantages and disadvantages of the internet to INDIVIDUALS
adv:
increased speeds of personal communication
easy to access info
24/7 services
social interaction with others
disadv:
potential identity theft
cost of connection (internet service provider)
source of distraction
cyberbullying
misinformation
Advantages and disadvantages of the internet to ORGANISATIONS
adv:
share data quickly globally
24/7
easy internal communication
working remotely
disadv:
malicious attacks and threats
cost of maintaining services (servers etc)
controversies ( hurts reputation)
Information styles
Text
graphics
video
animated graphics
numerical
audio
subtitles
tactile images
braille
tables and spreadsheets
boolean
charts and graphs
