The computer, which since its origins around 1936, remains an essential tool for human activities (work, study, entertainment ...), an instrument that, connected to the network, is a complement to bring us closer and allow us to develop in the current situation that has forced us to adapt to a situation that we did not expect.Thanks to the different existing technological tools, such as the computer, the cell phone and e-mail, we have a support for communication, not only business but also personal to manage issues at any time; as Gates B. (1996) states in the article "E-mail enables...