Module 2: additional information about data transmission

Transmission networks

Internet Protocol

The Internet Protocol (IP) is the commonly agreed method used by computers and other data transmission equipment to enable data to be transported over networks.

Quality requirements:

  • Always-on connectivity (no telephone dial up)
  • Quality depends on bandwidth (speed of transmission)
    • 56 Kbps is a telephone modem (too slow)
    • 128 Kbps is an ISDN line (still rather slow and expensive)
    • 512 Kbps and more is currently the standard and can be found with DSL, Cable Modem, satellite, etc. This type of connection allows streaming.