DFIM monday oct 2

for today's class with Simon pope, which I enjoyed a lot by the way, we did first a preseenntation of peer-to-peer technology, these were the main points of mine:
p2p is a network between peers that make us able of getting any kind of electronic data, there arre two tipes, puer p2p and hybrid. Pure: peers act as equals, there is no cental server or router. Hybrid: has a central serrver that keeps info on peers and respond to request of info, and peers are responsible for hosting avalable resources, for letting the central servver know what resources they wanto to shar.... Also route terminal are uused adreses which are deferended by a set of indices to obtain an absolute address.
Unstructured and Structureed p2p: all participating networks consists of all the partipating peers as networks nodes. There ae links between any two nodes that know each otther
Unstuctured: is formed when ovverlayed links are stablished arbitrary. A peer copies existing links and formes it's own network wuth time. his makes easy finging popular and common data, but makes it also very dificult to find rare data
Structured: networks maintain a Distributed Hash Table (DHT) and makes peers responsible for a certain part of data so that when somebody searches for some data, rare or not, they will know where to look and get it strait. Some structures p2p are: chord, pastry, tapestry, can (content addressable network), an tuplip.

During the second part of the lesson we spoke about cctv and how someone can get a copy of themselves if htey ask the place where they have been taped, or you can get a reciver like one of does that people use to see satelite tv ina a different room than where the satelite system is, and with this reciver if the cctv ccamera you have been taped is wireless you can get the signal and store it if you like. You can also do it the other way round and send a tv o radio wave with a "sender" and make people and recivers near you able to recive what yuo're sending even in there home tv's. These kind of applicarions gave an idea for my final proyect.

We have also been asked to do an easay for next monday about these matters.