2007年5月30日 星期三

Modern-Day Pirates

Summary
There are still a lot of pirates in our society. Most of the piracies in nowadays usually use sophisticated tools to attack. Long time ago, pirates usually boarded on the boat and stealing money, commodities or value stuff if they want. By using some kinds of high technology system can avoid piracy.
How often have you done each of the following?
* bought or used illegal software
* bought or used illegal CDs
* downloaded copyright music without paying
* made photocopies of a magazine or book
If you have done any of the above, it means that you are illegal.
And there are three issues that we need to discuss: the first one is the cost of piracy ads to the cost of the product, the second one is that piracy discourages innovation, the last one is intellectual property piracy create a culture of using things without paying.
We have some ways to approach, for example, education, legal prosecution, copy protection and compromise. Education including letting people know the questions in intellectual property piracy. Legal prosecutions involves can impeach the people who break intellectual property. Copy protections also provide people to download and share. Compromise offer some discount for students to download.

Reaction
I think we should protect these inventors, and download any materials without any permission. Because they were so work hard and they spent a lot of time to create creations. So I think we should respect them.

Outside Reading

http://en.wikipedia.org/wiki/Copyright_infringement

Copyright infringement is using something that is copyrighted without permission from the person who created it. If you steal the material that inventors created, then you are illegal. In mi opinions, if you were the inventors and somebody steal your idea without your permission, I think you will very angry because. Respect others the way you want to be respected.

2007年5月16日 星期三

Secret Codes for Spies?

Summary and Reaction

We are all spies and we all use secret codes every day. In barcodes, when I work i always have barcodes but we don't see them as secret codes. Barcodes give stores different types of merchandise their ow distinctive identity and price. The first codes used in spying was the begining of World War II. British intelligence used Morse code to send messages from Germany. Morse code is still used today. In this article it talks about the Enigma machine and how it was broken. A number of the England's brightest scientists and mathematicians were recruited to break the work. But their works were not recongnized because the mission was top secret. However they are all heros and everyone should give them credit.

Outside Reading

http://en.wikipedia.org/wiki/Enigma_machine

I was fasinated by the Engima Machine so I read more about it on wikipedia. The Enigma machine was a cipher machine used to encrypt and decrypt secret messages. It looked like a type writer. It was used by the German military in World War II as it could decrypt a large number of messages that had been enciphered on the machine.