Made possible by Fiber optic technology. Based on the fact that Pulses of Light transmitted over fiber will enable computer networks to communicate over greater distances at higher rates of speed, with complete immunity to electrical Interference of any type, offer greater reliability at lower cost than can electrical, copper-based networks, with either coaxial Cable or Twisted Pair wiring. The conversion of electrical signals to lightwave signals is accomplished via transceivers containing special compound Aeroflex Microelectronic Solutions Fiber Optic Glossary Release 1 semiconductors made of gallium arsenide and indium phosphide. These two compounds have enabled the implementation of lightwave communication at extremely high Data rates. This technology, when implemented in an Optical Bus Passive STAR cabling system, gives the ultimate in reliability for any network. Furthermore, the absence of electrical connectivity between computers avoids grounding problems, Ground loops, Electromagnetic Interference and a Host of related problems that are associated with Transmission over copper wire or cable. Fiber optic networks, configured in Passive Star topologies, are rapidly becoming known as the most cost-effective, thoroughly reliable, easily-maintained networks in the world.