Methods of communication

• if by wires
  • Parallel
  • Serial
    • synchronous
      • Serial Peripheral Interface (SPI)
      • Inter IC (I^2C pronounced eye-squared-cee)
    • asynchronous
    • Universal Serial Bus (USB)
• if by air
  • Radio
  • Infra-red (IR)
  • Wireless LAN
    • 802.11b
• inter-media
  • internet protocol
  • User Datagram Protocol (UDP) RFC768
  • Transmission Control Protocol (TCP) RFC793
  • Using IP