Internet

Internet

1. An independent mesh of networks that send packets of information relying on protocols, IP addresses, DNS, TCP, and other language codes to operate functionally.

   • Protocol
     • A well known set of rules users follow.
     • HTTP
       • Hypertext Transwfer Protocol
       • Abstraction
         • The ability rely on something without needing to know how/why it functions.
   • DNS
     • Domain Name System
       • Redundancy
         • Bouncing from router to router until the intended one is found.
   • TCP
     • Transmission Control Protocol
       • Packets
         • Small bits of information send through the internet.
           • Latency
             • The amount of time it takes for a packet to travel from one place to another.
         • Bits
           • Small Pieces of information.
             • Lossy Compression
               • When data is compressed some of the data may be lost during compression/decompression.
             • Lossless Compression
               • A form of compression where none of the data is lost during compression/decompression. The image can be put back in its original state.
           • Bit Rate
             • How fast bits are sent.
             • Bandwidth
               • The amount of data transffered per second.
           • Binary
             • 2 states. Ex: A or B, yes or no.
             • ASCII
               • American Standard Code for information Interchange
                 • A way to write the english keyboard using binary.

2. IP Addresses

   • An ID marker to help track who sent/received a message on the internet. Also used to identify websites.
   • Dynamic IP Addresses
     • IP addresses that change.

3. Heurristic

   • A set of instructions that solve a computationally hard problem.