Lecture 9/Tutorial 8

Lecture

Networks
The physical nature of them, the basic concepts on how they work locally and world wide.

LANS - Local Area Networks
WANS - Wide Area Networks
VANS - Value Added Networks
MANS - Metropolitan Area Network
PANS - Personal Area Networks
BANS - Body Area Networks
AN - Academic Network
RFID - Radio Frequency identification

2 useful definitions

The Internet
is the global network of networks of computers and peripherals that communicate with each other (plus developers)

The World Wide Web
is the Internet plus all information accessible via the Internet plus all communities and developers.

The Cloud
As a user sat at a PC the cloud is the representation of the complicated network structure of the internet. The bit that I do not own or manage.
As time goes on more people's documents, files will become part of the cloud and less will be on there own PCs.

3 basic shapes of networks
Ring - serially closed loop, message passed along (or Token) nodes (terminals/PCs/printer)
Bus (generic name) - along a backbone nodes connected including a server
Star - central hub that all nodes connected and rely on

5 circle cable strategy - historic idea 1996 People and Chips McGraw Hill
Home
Workplace
Local district
National telephony
International backbones including satellites

WiFi
Cable with the addition of radio technology
(one provider is actually called The Cloud)

DoCoMo's I-Mode
Do communications over the mobile network, Japans predominant mobile phone operator. (wiki)
Experimental 3G system

In the last few minutes of the lecture (tony finished at slide 21) we saw and discussed a video that gave example of BAN and a particularly mad professor who appeared to be hellbent on turning himself into a cyberman. All very scifi.

Tutorial

Edited the FormMailCharity.php to correct my typos. And then checked that everything worked.
Very frustrating. There must be something wrong with the systems within BIT.
I checked on my assignment enquiry page and found that the javascript validation did not work.
This was in 3P29. The code seemed correct.
Spent along time trying to make this work.
Came back this evening in 3p07, and it all works perfectly.
1. The javascript
2. The w3 validation
3. The PHP

all works fine.

I haven't changed anything, spent along time staring at the code, looking for errors and it was alright all along.

So I put it to my audience, what are the possible problems here??

It did mean that I have not done the very final parts of tutorial 5 (Exercise 3 - iframe) and 6 (Advanced -telephone number only because the hyperlink and image bit was done for the assignment)
I will of course for completeness finish the on Friday 5th or possibly come in earlier on Thursday 4th befow the lecture. An hour would be more than sufficient. iframe part I could actually do at home.

Conclusion

Although originally the thought of doing all these blogs wasn't all that appealing they have been useful for
1. revision of the work, and I have on new topics tried to explain them back in simple easier to remember terms. For my own benefit so for next year before the exam I have some easy to read summaries of the topics covered.
2. leaving myself notes on what to do in the next tutorial. Again for my own benefit so that I knew exactly what I had to get straight into.

Overall it became less about writing a blog to please my audience (Messrs Hulbert and Drewry) and more about being for me.