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Online Communication• Blogs• Microblogs• Wiki• Podcast• Chatroom• Instant Message• Virtual Learning
Environment (VLE)
Types message on client Saves message
on server
Behaviour online
Netiquette• How to behave• CAPs = Shouting• Reply with @name• Respect privacy (don’t
reveal personal details)
Safety• Profiles – don’t
reveal too much• Scan downloads
(trojans, viruses)• Beware of malware
VOIP (Voice over Internet Protocol)
Telephony over the internet
Disadvantages• Can drop connection or
packets (low quality)• Security concerns
Advantages• Low cost (internet only)• Connection anywhere
there is internet• Can include video and file
sharing facility
Ubiquitous computing
• The internet of ‘things’• Computers in everyday objects
– Cars– Fridges– Home automation– Tins of baked beans
• RFID tags in objects and products
The intelligent fridge knows what is still freshYour health monitor tells
it you need vitamins
Your car receives a note from the fridge and plans
your route home via shops
What else could happen if computers are in EVERY device?• You car detects you are too close to
the car in front and breaks a little• You get hit by a truck, your health
monitoring watch calls an ambulance
• As you get close to home your car calls your home and turns on the heating
• As you get to the door it detects your personal RFID chip and unlocks it for you.