As many professionals in the communications technology field will agree, the ethernet network is like a pair of jeans. The design has existed for years and although there have been several improvements over time; the essential concept remains the same. Unlike looking into your wardrobe of boyfriend jeans, dark denim, and flares however, looking at the evolution of the ethernet network is not quite as apparent.
The ethernet network was originally invented in 1973-74 by Robert Metcalfe at Xerox PARC (there has been some contention over this since a patent was not filed until 1975 and the network system was not used at PARC until 1976).
Robert worked as a researcher at Xerox's Palo Alto Research Centre and was responsible for creating a network system for Xerox's new computers and laser jet printer. The original ethernet network simply allowed computers to transmit data packets with one another using a shared coaxial cable. This enabled the computers to find one another with 48-bit destination and source addresses. The original ethernet network could transfer 10 million bits per second and in order to navigate and identify the appropriate sources to deliver data packets it used a 16-bit Ethertype type field.
The ethernet network was released onto the consumer market in the 1980s, at this time Token Ring and Token Bus were it's biggest competitors. However, the ethernet network was able to gain dominance over the market in the early 90s when it switched from a coaxial cable to twisted pair wiring.
Although the coaxial cable system worked initially, the growing popularity of ethernet networks and the demands of media content forced industry professionals to alter the technology. The original wiring cable was too small to cope with large extended networks, and collisions, where data packets collide with one another, happened frequently and consequently resulted in lost transmitted information. In the early 90s, the ethernet network's thick cable was replaced by a smaller, thinner cable that was intended to reduce costs and make installation an easier process.
The ethernet network was originally invented in 1973-74 by Robert Metcalfe at Xerox PARC (there has been some contention over this since a patent was not filed until 1975 and the network system was not used at PARC until 1976).
Robert worked as a researcher at Xerox's Palo Alto Research Centre and was responsible for creating a network system for Xerox's new computers and laser jet printer. The original ethernet network simply allowed computers to transmit data packets with one another using a shared coaxial cable. This enabled the computers to find one another with 48-bit destination and source addresses. The original ethernet network could transfer 10 million bits per second and in order to navigate and identify the appropriate sources to deliver data packets it used a 16-bit Ethertype type field.
The ethernet network was released onto the consumer market in the 1980s, at this time Token Ring and Token Bus were it's biggest competitors. However, the ethernet network was able to gain dominance over the market in the early 90s when it switched from a coaxial cable to twisted pair wiring.
Although the coaxial cable system worked initially, the growing popularity of ethernet networks and the demands of media content forced industry professionals to alter the technology. The original wiring cable was too small to cope with large extended networks, and collisions, where data packets collide with one another, happened frequently and consequently resulted in lost transmitted information. In the early 90s, the ethernet network's thick cable was replaced by a smaller, thinner cable that was intended to reduce costs and make installation an easier process.
About the Author:
Emily Collins writes on behalf of Britannic Technologies. To find out more about ethernet networks click here
The Communication Blog
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