Cyberspace and Society Lecture Notes 2

O cloud computing is a form of grid computing but the

Info icon This preview shows pages 2–4. Sign up to view the full content.

o Cloud computing is a form of grid computing, but the resources come from the internet rather than a specific source. Networking History o 1964 – online transaction processing made its debut in IBM debuts SABRE (Semi-Automatic Business-Related Environment) reservation system, set up for American Airlines. o Using telephone lines, SABRE linked 2,000 terminals in 65 cities to a pair of IBM 7090 computers, delivering data on any flight in less than three seconds o 1971 – Ray Tomlinson of the research firm Bolt, Beranek and Newman sent the first email when he was supposed to be working ona a different project o Tomlinson is credited with being the one to decide on the “@” sign for use in email. o Message sent over the military network called ARPANET Wi-Fi Equipment o If your computer is not pre-equipped with wireless circuitry, you can purchase and install a Wi-Fi card. The Router o A router forwards messages from network to network o It needs an IP address to determine the packet destination o If you want multiple computers to share a broadband connection, you’ll need a router. Wi-Fi Setup
Image of page 2

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

o Set up the router o Connect to the router with a computer o Configure the router o Access the router setup utility o Create a new router password Encryption o Encryption transforms a message so that its contents are hidden from unauthorized readers Plaintext has not yet been encrypted An encrypted message is referred to as ciphertext Wi-Fi Setup o Enter an SSID for the network o
Image of page 3
Image of page 4
This is the end of the preview. Sign up to access the rest of the document.
  • Spring '11
  • Forman
  • Computer network, Wi-Fi, Transmission Control Protocol/Internet, Control Protocol/Internet Protocol, LANs- Network Architecture

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern