Task 10:

For your first media tetrad I want you to create one for an old medium of communication.   Radio, Television, Newspapers, etc.

First media tetrad is based on an old medium of communication called Television.
Television as a medium of communication enhanced the news and entertainment beyond the boundaries of radio and new paper form of news and communication. It made radio obsolesce as people prefer visual medium the just audible medium. It retrieve the way we broadcast television from old medium of radio broadcasting and signal sending. As television is pushed to its extreme, some people still prefer to listen to the radio rather than watching Television people spend more time on their handheld computer games and computer than in from of Television.

For the second tetrad I want you to choose one contemporary medium of communication.    Instead of choosing "the internet", be more specific -   a particular form of social media, the mobile phone, and so on.   
Second media tetrad is based on more contemporary form of technology called PDA phones.

This medium enhanced the way we use of mobile phones, for instance it can do much more than just calling and texting. You can use it as a personal assistant, which manages all your work and activities throughout your daily life. It has made digital diaries and personal organising digital instrument obsolete as they did not have capacity to connect through internet and many more application. However, it still retrieves a good deal of functions from older media such as cellular phones and personal organising digital instruments and digital calendars. When pushed to the extreme this type of media will become less popular as it has become much more complicated with quantity of information and functions available on PDA phones.