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communication (Effective use of the internet (General internet terms (Web…
communication
Effective use of the internet
Internet
Allows to
Send and receive Emails
Chat online
Browse the world web
Transfer files
Intranets
definition
A computer network based on internet that can share information within a company, as it is protected by a firewall
Reason why use it
Prevent external links
Ensure information is specific to their needs
Difficult to hack
Easier to send sensitive messages
Offer better bandwidth
Can create extranets
Differences with the internet
Is easier to block websites with the intranets
Intranet requires and ID and password, but in internet everybody can access. So intranet is more private
Intranet is for local information instead of global
Intranet is easier to install a firewall
Cloud storage
Data stored on offsite servers.
Public cloud
storage provided by a company firewall.
hybrid cloud
Combination of public and private cloud
Private cloud
Storage environment cloud provider are different companies.
Advantages
No need of external storage device
Cloud provide user remote backup
access to the cloud with any device
If someone has a failure, the cloud restore it.
The cloud has almost unlimited storage capacity.
disadvantages
It has sometimes a cost to store.
Potential failure is always possible
Bad internet connection results in problems downloading data
Large storage capacity is required
General internet terms
File transfer protocol (ftp)
Network protocol which is used to transfer files over the internet
Internet service provider (ISP)
Company that provides users with access to the internet for a monthly fee and users cannot view web pages
Hypertext transfer protocol (http)
Rules that have to be obeyed when data is transfered through the internet
If it has an "s" at the end, it means secure
Web browsers and URLs
What is it?
Software that allows a user to display a web page translate and interpret HTML
Features
Store users favourite websites
Have a history of places the user have visited
Have a "home" page
Is able to go backward and foward
Have hyperlinks so users can navigate between web pages
Format use instead of URLs
www, name of website, .com and the country code
path
http or htpps
Filename
Blogs, wikis and social networking sites
Wikis
What is it?
Applications or websites in which the user can modify data in a web that already exist
Features
Many authors
Organise the page the way you want
Anyone can edit
Keeps tracks of all entries
Easily edited
Large documents can be seen by many people
Social networking sites
Features
Anyone can create it`s profile
Allow to upload content
Free web space
Possbile to write on each other`s wall
Free instant messaging
Members can create pages
Possible to amil others within a community
Inivte people to become friends
Members have control over who access their personal data
Blogs
what is it?
Personal internal journals
Features
Single author
anyone can read
Organised in reverse chronological order
Update by the author
Users can only read
Searching the internet for informations
2 ways
URL
User can save it in favourites
The user has to type correctly without any mistake
Search engine
advantages
Information up to date
The information is almost limitless
Fast and easy
Look for information in comfort
Info in the net is free
Pages on the internet have multimedia elements
disadvantages
Risk of accessing inappropriate websites
Easy to be distracted
The internet is not regulated
Risk of "information overload"
Risk of plagiarism
Research skills are lost
Find relevant information is not always fast
Is not always easy to find reliable information
How to evaluate reliability?
Commercial websites will be biased
Excesive advertising could be unreliable
Advertising website only to its own products, possible unreliable
Anyone can set up a website
Possible to use the URL to identify a website´s reliability
Check if responsible bodie have endorsed the website
Check if the website has links to other websites
Testimonias, reliability
Last update to long, possible unreliable
Communication with other ICT users
Constraits
Copyright
Emails are subject to copyright laws.
Security and password protection
Emails need security and protection
Use passwords.
change passwords regularly.
Use spam filters.
Run anti-virus and anti-spam software.
Acceptable language
Language used by people when writing emails must lie an acceptable code of practice.
Laws
Protect people against the misuse of emails.
Netiquette
internet etiquette
Need to respect other users´views.
Spam
What is it
Unsolicited email or SMS
Disadvantages
Uses bandwidth on the internet
Clog up user`s inboxes
Is annoying
May have viruses
Uses prople`s time
Email groups
"Spammers" can send emails to lots of user with one click.
Companies use them to set up meetings.
Companies and organisations can group people for marketing.
Easier to send multiple emails.