How does the Internet work?

How does the Internet work?

October 29 is International Internet Day! On this day 45 years ago, Leonard Kleinrock sent the first Internet message. Though Kleinrock meant to send the word "login," the only letters sent before the system crashed were "lo." How does the Internet work?


Key Facts In This Video

  • 1

    A web-cache server acts as a "holding tank" for the most frequently accessed things on the Internet. (0:42)

  • 2

    When you search for things online, you are connecting your IP address to another IP address, similar to two phone numbers connecting for a conversation. (3:58)

  • 3

    "HTTP" stands for hypertext transfer protocol. (4:18)

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