Day 3

Day 3

How internet works

Before we move on to how internet works, we have continued what we have covered last time. We have discussed about social medias; and now, I would like to overview the social media in terms of companies side usage besides the individual usage.

There are internal and external usage. The external usage is what companies use to promote and operate their services; on the other hand, the internal usage is for efficiencies and organizing the tasks of offices.

There two types of representative ways of social media which helps the complete communication. One is the wiki which is also common among the individuals. The benefit of the wiki inside of a office is that the responsible people can describe and edit the information that they need to share at anytime they want; and they do not need to repeat saying the same thing over and over to inform different person. So that, the wiki removes the shackle of time engagement for communication; and they do not have to repeat the same announcement at all. This is very innovative to achieve efficiencies. I will i would have this in my working environment, especially when new part-timers are joining. Every time we have a new people we need to instruct the same thing over and over to different people because they always forget things; but if I got the wiki and one it is describing our task process it will be much more easier to convey our jobs.

The other type of the thing is called the yammer which is the twitter style micro blog communication. This style is more applicable to changing situations and instant order making types of communications rather than fixed task's announcements.

The important point to indicate about the internal use of the social media is that it has started from a grass root level. Somebody engaged in the job come up to use these medias for better performance of work starts the experimental use of the media. If the idea works pretty well and other people are interested in the social media, it finally comes to the CEO level of decisions to promote it or not. Thereby the orientation of the internal use of social media is starts from practical level of ideas; then it will eventually end up in the top managerial decisions for the official employments. The additional fact is that this grass root level of establishing work is quite intensive in offices even now.
Now, I would like to move on the main topic which is how internet works.Computers and computers are connected through the internet; and, what connects the internet and computers is call rooters. Rooters are machines that connects computers and recognize which one is which; and whether the computers locate in the home side or the internet side. After we had rooter we have got Domain Name Server(DNS) which knows the domain names(~~~~~~~~~.com) and its location. The DNS server connects our computers to the servers which have the datas of websites that we want to observe. However, the DNS server does not all the domain names exist in the world; so that, they ask for the domain names to what we call the root server which is the one that contains the fundamental information of the website that we want.

Each computer has addresses to be presented on the internet which is called the ip address. To give the addresses for computers there are two ways. One is simply distributing static addresses to each computers called the static. However, to implement this we face the problem that the number of addresses are limited. To solve this problem the dynamic had come for substitute. The dynamic distributing does distributing random addresses when it is required; and take it back from the user when it not need it any more. By taking this dynamic process a number of people can share the addresses only the time each of them needed. This dynamic system has solved the problem of rapidly growing internet users.

Who provides addresses? Internet service providers(ISP) provides addresses for the internet users with fees because keeping the addresses for users is costly and requires a lot of equipment; so that, the more addresses you need, you need to pay more money for them.
HTTP(Hyper Text Transfer Protocol) is a system works for getting data of specific websites and manage the data to make it observable for users. Hyper text means jumping text from one place to another. Protocol is that the way that the data is shown in a visible way.

Thereby, HTTP works for us to show basically text data on websites; however, it is not enough for running something like web-mail system such as g-mail. To support the system of G-mail we have got Application on the web which enables operators of computers to use the system just as like they have got a installed program on the computer although it actually requires for each segment of data required every time. The apps-on-the-web enables people to have more convenient experiences of services.

Hyper Text Message Language(HTML) is another important fact that is to fabricate the text document visually with colors and decorative figures.

Now at the end of the lecture we covered one business model invented by a professer from Harvard University. We simply looked through the model and thought what IT can do to help it.


In the business we have rivaly and the rivally is affected by the five outer factors which are buyers, suppliers, risk for entrance and thread from substitutes. The buyers have bargaining powers; and if people have more information of prices of rival products, the pressure of bargaining powers on the price becomes harder. What can IT do to help the situation of business. What we do is to bundle the buyers to have instant information by hiding them. On the other hand, suppliers, for example, labor supplies have more bargaining power to give pressures for companies. What IT can do is to provide efficiencies and location free work environments to meet their satisfactions to relieve their pressures toward company. Now, how can IT work out with substitutes? The answer will be how to capture the customers in our products or services. It could be in various ways though, one that apple took was to hook people up with related systems such and itunes and iphones. So that, even if you wanted to change your iphone to another type of phone, it is difficult because your medias are once all adhered with itunes. It is such a bothering task to switch all media contains you have just to change your cell phone.

The things we covered in day 3 ends here.