What have I learned today?

Today, I had my Informatics class and because of my teacher, I have learned more about the Internet. Other than it's definition which was discussed earlier, the internet is a network of networks, joining many government, university and private computers together and providing an infrastructure for the use of email and etc. I have learned about its history and how they have came up with the internet we are using today which I think that was really a historic event in the past because as we can see today the internet is used widely today. Like for example, Sputnik 1 which was the first artificial satellite on earth owned by the USSR, the IMP also known as the Interface message processor,he ARPANET which was a military project and then being able to make the telenet the first comercial verson of ARPANET.

As, I am listening to the discussion, I have learned the basic parts that we can find while using the internet, like for example, the search engine that is an internet tool that locates web pages and sorts then according to specified keywords. Also, the parts of the URL or the Uniform Resource Locator.  Other than the meaning of the "WWW" on our URL which means "world wide web", I have learned more parts of the URL like the http;// symbol also means hypertext transfer protocol. Also, that the .com is an example of top level domain the html is a hypertext markup language. Another was that I have learned the purpose of having an DNS or the domain name system because it is used to locate and it is easy to remember. Also, there are top level domains(TLD) which fall under categories namely, the Generic Top-Level Domains(gTLD) these are the most common domains that most people heard of like the .COM .ORG etc. Another, is the Generic-Restricted Top-Level Domains which is similar to the generic top level domain but only eligibility is intended to be restricted and ascertained more stringently examples are the .BIZ or .PRO.Next, is the sponsored top-level domain(sTLD) these are the domains that are sponsored or proposed by private agencies or organizations that establish and enforce rules restricting the eligibility to use the TLD examples of which are .AERO or .ASIA. Next, is the Country code Top-level domains (ccTLD) are generally used for specific dependent territory and country. Lastly, the reserved top-level domains for range of pursposes like infrastructures, testing and support of international organizations. 

Although, I have learned all of this and that the internet is free, I have learned that the internet follows the TCP or IP which means the standard protocol followed by the internet and today, we have several ISP or Internet Service providers.