Advantages and disadvantages of network.

   Network is a group of computers which have an access directly to the main, central computer, which is called a server. There are many advantages of network.
Firstly, it keeps us from wasting our money to the extra hardware components. With the help of network only one printer or modem can be common to all computers in a common line. You will not have to worry about writing on a computer which doesn't have a printer or modem.
Secondly, it makes a great convenience to all the users. If you have something in a server to work on and you want somebody to do it, it's good to just send it through the wire to the computer where a desired person is working at. It is more comfortable than calling everyone to the server and have others work.
Thirdly, portability of network is greatly accepted in academic process. If a teacher wants to take a computer-based test from students, s/he will need to include tests to all computers. This can be done effectively fast with the help of network. What s/he has to do will be only install the test to the main computer and send it to all computers in line.
Since no part of technology is without disadvantages, there are numbers of disadvantages of network.
The first problem of having network is virus, which is the evil enemy of all computers. When hackers try to do something bad to computers on network, they, firstly, spread viruses to the server. As soon as virus gets into line all computers connected to server will get it too. As a result, there appears a big threat on the atmosphere of information protection in all computers.
The second problem is the availability to using data on a server via all the computers in line and its being available to everyone. This means any person may see what is on the server, and probably use it with bad aims. It shows that there is no opportunity to keep information secret.
The third problem is its width. If the network spreads wider including a lot of computers, it becomes difficult to manage with it. It will have some trouble in spreading data through all computers; computers start stopping time by time; some refusals to the work of the user will appear. 

Everyone liked this article, this is true. And  there are fairly few articles because it doesn't have any mistake  that could make students oppose at once. If this article were full of mistakes, only then there would be a huge number of mistakes. Because as you know, negative things are talked more than positive ones.

I also think that teamwork is better.
Oysha, you said that teamwork is not so great, because it doesn't allow teachers to grade according to each one's knowledge and participation in group work activities. And you said it may lead to some disagreements of students who were active in preparation. That's why this article is suggesting to make students work in groups with individual accountability, which means every student in the group is important and responsible for the grades In this case active students let other passive groupmates think As a result, active and passive students work with no exception and no one is disappointed.  

Toshkenboy, Yes, may be you are right, articles should be read by people with good English knowledge. But do you think it's good to just list the main points for which the article is devoted to? If it's OK,  in that case everyone can write articles, can't they?
I think it's better if he clarified what he means by each cause, not the definition of course, at least providing some statements why he thinks they are the causes, how those causes may lead to suicide. Article writers should say something by the article, not leaving the reader in his/her own thoughts. 

No, I don't.
Because suicide is more about delibarate action when one intentionally (not accidentally) kills that one. Drug addicted people don't kill themselves on purpose, but just a great amount of fix kills them. At the beginning of taking drugs they didn't start doing it with the aim of leaving the life soon. What surrounds their mind from the beginning taking drugs to their realizing that they die soon is the current drug reception and is more likely an enjoy from it.   

Lily, of course every (maybe not every) hard work leads us to success, bu it's already the upshot of hard work. It's the result of having such hard work that demands more time, energy and makes you feel tired. Without this kind of "unpleasant" process you cannot succeed. That's why we should keep in mind that hard work is only the way directed to success, but not the success itself. Before success you have a lot of challenging ways to go through, which is called hard work. May be that's why it seems unpleasant.

Valikhan, I strongly disagree with you. Yes, of course, we can understand the causes with the help of dictionaries if some words are unfamiliar for us. But I don't consider the article which just lists the main points as a perfect job. She should have devoted her article to the causes and doubtlessly, should have explained how the listed causes can result in the teenage suicide since the main indicator of the content meaning of the article,  is its title, which says about "CAUSES".
Also, the causes listed in the article can be understood in a number of ways. Because every reader has his own and different view on things. The author should have defined them based on her own outlook, clarifying them in his own way of thinking.