12th WEEK-(THE INTERNET)

In this week we watched a video about the internet and its processes. First I learned about the definition of Computer Communications; which is a process in which 2 or more computers or devices transfer data, instructions and information. Its elements are the Sending Device, the Communications Channel and the Receiving Device. In the movie the process of the Internet Connection is elaborated. I t started with the HP to the Router to the Router Switch to the Network Interface(Proxy) to the Router of the site to the Internet Firewall and to the web server and then reverses the process until it reaches the user. Also the programming languages and Program Development were discussed. I learned that a computer program is a set of instructions a computer follows to enable it to perform tasks. I learned also that Programming languages are used to write instructions for the computer to understand for it to follow. The 5 languages that an Information Systems professional needs to have is Java, SQL,.NET,Web Languages (such as Java Script, JSP, PHP, AJAX and XML) and lastly, the Mobile Languages (such as J2ME). And I also learned about the roots of these languages, it started with Binary, Assembly, 1st generation language until 4th and then Visual.