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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.