Ex1+T1+Question+4

 4. What are Social networks and give some examples that were presented in the class? Write all the information you know about the Digital Music presentation.

The social networks began in the decade of the 80's with a system that allowed you to send and share messages, files, images, videos. etc. to other ussers or commputers, this was called Bulletin Board System (BBS). social networks now a days are web pages which are exactly made to comunicate people and share information. they receive this name because in the page, the friends you have, are link with other friends, and those ones with more people you know, that possibly dont belong to your social circle, but this friends of your frends possibly know somebody that is already your friend or at least is your contact, this is called a social graph. With this it is created a network between people through a technological media. Examples of social networks can be Facebook, hi5, Myspace or twiter and the web page that gave the boom to social networks called Friendster. The social networks are really important and innovative because they update the information instantly and now a days they are connceted to search engines, this means that you can type a name in google and if that person has a facebook for example it will appear. Also they are important because they make easier the making of web pages or blogs because they use templates, so you just add the file, images, words, info etc. Social networks are so addictive nowadays, because everybody for any part of the world can log in, and conect with whoever they want and share instant messages and different files.

Digital music was created in Germany by a student and his teacher, the teacher had always wanted to compress music, the student when talking with the teacher got very interested and helped him, both of them reserched in a way to compress music, finally they achieved their objective, they compressed music using the cd as a way of storage, they subtituded the huge LP discs.

the digital music was created, in the beginning, with the purpose to share music by digital media, however, the sound quality this format has is not the best because all the data inside a song have to be compressed in order to make the file go through the digital media or comunication. The creators of the format were two germans. As the time passed the MP3 became, really popular and replace the discman with the creation of apparatus that can store the MP3 that is an audio digital compressed format. Now a days this has evolve a lot, because we can se the different MP3 apparatus that we have: iPod (nano, mini, video, touch, shuffle) and lots of MP3 devices from different companies. However, the most popular is the iPod. Music, is now shared everywhere in any format, because it has been modified since the beginning of the MP3; we can have music in our cell phones, in our iPod or MP3 player, in our computers, in USB's and so on.

.