Thursday, February 25, 2010

Welcome Cert I Students

Welcome to those students starting the Cert I. This blog is designed to give you extra information about what is happening now in the world of Information Technology. It is worth looking here on a regular basis as I will try to update this regularly.



Further down on the blog are some other stories I have written this year which you might find of interest.



If you have a topic that you would like more information about let me know and I will create a post for it on my blog.



Also feel free to leave a comment for other to see as well. At times I will be deliberately controversial.



Just as a taste of what this blog can provide follow this link to a list of some of the "best" free software available to download from the internet. These are all "open source" software, which means that volunteers have developed them and they can be used legally by anyone for non commercial (and some even for commercial) purposes.

Sunday, February 14, 2010

Keeping up

Moore's Law states that technology doubles in performance every two years (actually every 18 months to be exact). This has held true for hardware for the past 30 years and is expected to continue for the next dozen at least. But is it also true for applications? Are they growing exponentially, doubling in performance every two years? This would mean that many of our staple applications today might not have even existed 2 years ago.



For applications like Twitter and Facebook this might seem like it is true, but what about word processors, spreadsheets etc. What is the essential difference between the latest version of Excel and the one we used 10 years ago. Most of us could not tell the difference.



New devices are also making it onto the market, what will the iPhone/iPad look like in 10 years time? Will the Kindle still exist, will we still have laptops?



More importantly, how do I keep up with all this without spending thousands buying the latest to try out for myself and then throwing them away when the merry-go-round of technology turns again? Or do I just get off and wait for time to kill all trends?



Fortunately there is another way, it is now possible to keep up without having to spend hours looking at what's new or thousands trying every gadget out for yourself.



The new web 2.0 social networking tools are designed to keep you informed by bringing a steady stream of information to you. Of course this stream can be just junk as any Facebook or Twitter user can confirm, it is not really earth shattering to find out what someone had for lunch and you really must question why someone would need to post that on their accounts. However this noise can be quickly filtered and ignored, and maybe is the price you need to pay to look into the stream of information. Not everything will be interesting but there will be gems there.



So what are the tools that I use to keep up. Firstly there are the sites which use RSS (such as this blog [that's the little square symbol in the address bar that looks like this]). By using this I can keep up without ever visiting the site again, the information just comes to me. Secondly I go to a Mashup site on a regular basis. The one I use is Digg. Here stories from around the world are posted by Digg users which might be of interest to other Digg users. Lastly I use Google regularly to check on anything I don't understand or want to find out more about.


Using these methods I have a steady stream of information coming to me and somewhere there I find out what is happening. I then get to choose when or if I will take part in any of the new developments.

Tuesday, February 9, 2010

Piracy on the Internet could affect Cloud Computing

Piracy is an interest term, it suggests that someone is stealing something and making money out of it. However the "piracy" that exist on the internet is rarely about making money, it is about sharing with our friends and family. If I have an interesting book that I have read I usually lend it to my friends to read. In real life this is called sharing, if I did this on the internet it would be called Piracy.


This sharing has been going on for many years. Libraries are set up to do this and no-one calls them "pirates". Even those companies which do this for music, movies and TV shows have been doing it for years. They first buy the product and then broadcast it to whoever is listening/watching, usually wrapped in commercials. These radio and TV stations are not called "pirates" either. However if ordinary people take the same material, digitise it, and put it on the Internet to be shared they are called "pirates".


The issue is not one of the actions or intents of individuals, it is one of the scale of the practise is a threat to the business model of the existing distributors. (If you understand the principle behind 6 degrees of separation you will immediately see why this is a real concern to the established business model.) In the short term these producers are losing money and this is a cause for concern. They have reacted as all large corporations react, through the legal protections they have built around them, ie copyright laws. And if the laws don't work they will get the laws changed.


Apart from individuals caught in the crossfire, why should this be of cause for concern? The large distributors will adjust their business model in time, and consumers will be able to get the material legally in the form of their choice. Music is already proceeding down this path with online stores such as Itunes, Spotify etc. TV shows are starting to be streamed on the Internet (eg ABC) and sites such as Hulu are highly successful. In fact 33 Billion videos were watched on the Internet in December 2009 alone. The issue here for most people is that only some people in the world have access (Hulu is US only, Spotify is Europe only), while this is the case for many "piracy" is the only option to get material in the format of choice.


My issue with this is not about copyright, it is about the integrity of the Internet. Recently IInet won a court battle which means that currently ISP are not responsible for the traffic on their system. This does not mean that the situation cannot be changed. It is technically possible to monitor the traffic, and where something can be done, someone will think that it should be done (often for the best of intentions). Governments have been trying to rein in the Internet for years either for political purpose or for social (eg monitor pedophile behaviour). Either way the result will be the same and the integrity of the Internet, once compromised will never be returned again.


Some might argue this is a small price to pay, however the price could be the entire concept of "cloud" computing. For many the key issue in deciding whether to store data on the "cloud" is whether the data is as secure as storage by traditional means. This raises two issues: firstly whether the information that has been stored can be legal available in the country where it is created but not in the country where it is stored (or visa versa). Recently Source Forge (a repository for open source code) had to close access to some countries to comply with US law. This could have the affect of denying access to the writer due to their country of origin.



The other issue is not just about the how and where the data is stored, but also who is monitoring the traffic. If the principle is accepted that the the traffic can and should be monitored, then there can never be a guarantee that the data on the cloud is secure.


Monday, February 1, 2010

Welcome VETiS

Greetings

Welcome to the my Blog site for the year. I will be posting information relevant to all my students, not just to your course.



Today I came across two articles which would be of interest to those interested in working in the IT industry who also use Facebook.



Facebooks can hurt your finances

Job applicants rejected due to Facebook information

I am always looking out for information to post on this blog about what is happening in Information Technology to share with my students. If you see an article which is of interest let me know.



You might also find this movie interesting on the potential for new input and output on wearable computers.



From Ted, Sixth Sense


Neil Williams