Reference: Mac,R (2010, February 11) The Temptation to Cheat in Computer Science Classes at Stanford New York Times. Retrieved February 11, 2010 http://bayarea.blogs.nytimes.com/2010/02/11/heading-off-the-temptation-to-cheat-in-computer-science-classes-at-stanford/?scp=2&sq=computer%20science&st=cse
Summary:
The article talks about there a lot of computer science students in Stanford University who had cheated in some courses in the exam. Before the exam the professor always tried to warn the students not to cheat. A student who has been caught twice said he had never thought he could be caught. The university’s judicial panel reported that almost 22% computer science cases had occurred of the total honor-code violations, and there are only 75% students passing through a course before they graduated. The professor Roberts thought computer sciences courses cheating could be detected hardly. Stanford employs a new system called watchdog to detect the cheating but it can’t find all of them. Professor Roberts created a new system called “collective incentive” that is if one person cheats the whole class will face more pressure on the final exam. But still some students thought cheating is not worth doing, and some students thought the other major students also had cheating; in CS the cheating usually happened in lower-level courses.
Reaction:
Stanford University is the most famous university in the world. The students who studied in Stanford should have enough personal abilities. Computer science courses are really difficult to detect the cheating in. In my opinion the cheating cases that exist not only are the students’ responsibilities, but also show that the management system has problems. If one person cheats in the exam the whole class will be influenced, also should be doubted.
First, the most important thing we should figure out is why so many students choose to cheat in the exam and how to do it. Their purpose should be passing the courses. If the university makes the rules like if the student cheats or helps other cheaters, and he or she will not pass the exam, this will be more efficient. The students can use copy, cut or paste others work as their own. Generally, it is easier to cheat than in other majors, but different computer programs couldn’t be the same with another one. Even a part could be the same, but without another code the program couldn’t be operated. If the professor checks the students’ exam or homework carefully, I thought it can easily find the problems; We can change the exam styles too. For example the professor doesn’t ask the students to write a program instead they need to check the wrong sentences and make it able to be run; it maintains academic standards and makes the cheating more difficult.
Stanford uses the method in which one student cheats and the whole class will be influenced. I thought it is unfair. Other students didn’t do anything wrong so they should not be punished, and it can’t solve the problems. Actually some methods can be instead of it like the students supervise each other or make the rules that helping cheating and cheating are equal to stop them.
Students should be trusted; the goal of the university is try to make the students as good as possible, not only require the score, also the morality. Using the correct way to avoid cheating and helping the students to know what things they can do is the university’s’ responsibility. Students also need to know, trust ourselves, and do as much as we can; that is enough.
Monday, February 22, 2010
Monday, February 8, 2010
RRJ2
Reference: J. D. BIERSDORFER(2010, Jan 20) Screen Language, Deciphered New York Times. . Retrieved 2010, Feb3
,http://www.nytimes.com/2010/01/21/technology/personaltech/21askk.html
Summary:
This article talks about two questions; the first one is what the difference is between the C.C.F.L. laptop screen and the LED laptop screen. C.C.F.L. which is named cold cathode fluorescent lamp, is older and is a cheaper method, but it has some drawbacks, like it includes mercury and it is bad for the environment. The next one is the LED screen. It uses less power and is friendly to the environment, but it is more expensive. Some people prefer vibrant colors or may choose glossy displays. Matte display has less color depth and contrast. The second question is how to protect confidential information. The author suggests making a password archive. Different operating systems have different tools to keep security. Or we can make some copies, install a firewall or unplug the drive. At last the author introduces a tip for icons in Windows 7.
Reaction:
This article is a personal tech who invites questions and answers; he taught many useful experiences to the reader. From his article, he talks about the C.C.F.L. and LED, and how to keep the confidential information in the computer, I just want to share my experience with others.
When I was in high school, my parents had already bought a secondhand laptop for me. During that time, the laptop was much more expensive than it is today, but the quality and function were less. My computer is a C.C.F.L. laptop screen. One day I just put my laptop on the desk and typed. Suddenly the screen went dark and nothing appeared any more. I had tried to find the issues but it did not work. So at last I had given up and prepared to send it to the factory to repair. Afterward I packed the laptop. I found something like water, but it had a the silver color, on the desk. My parents were very nervous and we thought it could be mercury. And we cleaned it very carefully. After that we never chose the cheaper laptop again. And I prefer to pay more money to buy a safe computer. Actually nowdays the C.C.F.L. has almost disappeared. The famous brands of computer manufacturers choose the LED much more even though it is a little expensive.
I have never put my important information or documents on the desktop, but if the computer gets a virus, no matter where I put them, I will still lose them. So I would like to put my important documents in another device like a flash device. Even though the computer has been hacked, but I still keep them. And I don’t agree with the author’s statement that we should set a password archive. it is too easy to decipher the program, and it is inconvenient to open them. So installing security software should be a good idea.
I like the facts that they can share skills. I can learn a lot of information from these answers. So I really hope there will be more articles like this.
,http://www.nytimes.com/2010/01/21/technology/personaltech/21askk.html
Summary:
This article talks about two questions; the first one is what the difference is between the C.C.F.L. laptop screen and the LED laptop screen. C.C.F.L. which is named cold cathode fluorescent lamp, is older and is a cheaper method, but it has some drawbacks, like it includes mercury and it is bad for the environment. The next one is the LED screen. It uses less power and is friendly to the environment, but it is more expensive. Some people prefer vibrant colors or may choose glossy displays. Matte display has less color depth and contrast. The second question is how to protect confidential information. The author suggests making a password archive. Different operating systems have different tools to keep security. Or we can make some copies, install a firewall or unplug the drive. At last the author introduces a tip for icons in Windows 7.
Reaction:
This article is a personal tech who invites questions and answers; he taught many useful experiences to the reader. From his article, he talks about the C.C.F.L. and LED, and how to keep the confidential information in the computer, I just want to share my experience with others.
When I was in high school, my parents had already bought a secondhand laptop for me. During that time, the laptop was much more expensive than it is today, but the quality and function were less. My computer is a C.C.F.L. laptop screen. One day I just put my laptop on the desk and typed. Suddenly the screen went dark and nothing appeared any more. I had tried to find the issues but it did not work. So at last I had given up and prepared to send it to the factory to repair. Afterward I packed the laptop. I found something like water, but it had a the silver color, on the desk. My parents were very nervous and we thought it could be mercury. And we cleaned it very carefully. After that we never chose the cheaper laptop again. And I prefer to pay more money to buy a safe computer. Actually nowdays the C.C.F.L. has almost disappeared. The famous brands of computer manufacturers choose the LED much more even though it is a little expensive.
I have never put my important information or documents on the desktop, but if the computer gets a virus, no matter where I put them, I will still lose them. So I would like to put my important documents in another device like a flash device. Even though the computer has been hacked, but I still keep them. And I don’t agree with the author’s statement that we should set a password archive. it is too easy to decipher the program, and it is inconvenient to open them. So installing security software should be a good idea.
I like the facts that they can share skills. I can learn a lot of information from these answers. So I really hope there will be more articles like this.
Monday, February 1, 2010
RRJ1
Reference: ASHLEE VANCE (2010,January 20) If Your Password Is 123456, Just Make It HackMe New York Times. Retrieved Jan 27, 2010 http://www.nytimes.com/2010/01/21/technology/21password.html
Summary:
This article is talking about how a hacker stole the password and why people set their password too easily. Many people prefer to set an easy password. And hackers could try the most common password and break accounts. Some web sites try to lock the account if too many incorrect passwords are typed but it is still not safe. And now, some web sites use mixed letters but social networking and entertainment Web sites still try to make life simpler for users. The experts suggest people remember at least two kinds of password.
Reaction:
After I read the article I remembered there is another kind of password could be safer. It is a card that has been separated into several rows and column; there are different that numbers in every coordinate. If you want to enter your account you need to type the number in different coordinates by random. And some bank use digital security as a one time password. It also can make our account safer.
The only problem is that people still want to remember fewer passwords in their brain. Sometimes it prevents them from forgetting the password and sometimes they are too lazy to remember the password; also typing a lot of letters is a waste of time when they enter the account. In the world today, people have lots of accounts; it is not pratical to make different passwords for each account.
In my own opinion, I suggest people choose a few passwords that are easy to remember. The important accounts use the complex password and the simple password for the less important account. Even though sometimes it is troubling, but it relates to the privacy security, so we couldn’t ignore it. And also it is better that web sites upgrade their firewall to protect from the attack from the hackers. They must Ensure the customer’s accounts safety.
Summary:
This article is talking about how a hacker stole the password and why people set their password too easily. Many people prefer to set an easy password. And hackers could try the most common password and break accounts. Some web sites try to lock the account if too many incorrect passwords are typed but it is still not safe. And now, some web sites use mixed letters but social networking and entertainment Web sites still try to make life simpler for users. The experts suggest people remember at least two kinds of password.
Reaction:
After I read the article I remembered there is another kind of password could be safer. It is a card that has been separated into several rows and column; there are different that numbers in every coordinate. If you want to enter your account you need to type the number in different coordinates by random. And some bank use digital security as a one time password. It also can make our account safer.
The only problem is that people still want to remember fewer passwords in their brain. Sometimes it prevents them from forgetting the password and sometimes they are too lazy to remember the password; also typing a lot of letters is a waste of time when they enter the account. In the world today, people have lots of accounts; it is not pratical to make different passwords for each account.
In my own opinion, I suggest people choose a few passwords that are easy to remember. The important accounts use the complex password and the simple password for the less important account. Even though sometimes it is troubling, but it relates to the privacy security, so we couldn’t ignore it. And also it is better that web sites upgrade their firewall to protect from the attack from the hackers. They must Ensure the customer’s accounts safety.
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