Invention of Ethernet -it has been in half a century
Ethernet technology was created in 1972 and has a history of 50 years. This is a computer network technology that connects PC with printers, other devices, and equipment in the office and home. The technology’s contribution to the later computer and Internet field and its application scope far exceed the imagination of the inventor at the time.
Ethernet and crystal header network cable
Ethernet is mainly invented by two people: Bob Metcalfe and David Boggs. Bogs died at the age of 71 in Parolo Alto, California on February 19 this year (2022).
In 1972, Metakif came to the computer science laboratory of the Xerox Palo Alto Research Center (PARC). PARC is a world -renowned research institution. In 1972, PARC researchers have invented the world’s first laser printer called Ears and the first PC with graphical user interface called Alto.
ALTO computer of Palo Alto
In the spring of 1973, Pogss just entered Stanford University to study for a master’s and doctoral students, and he began to internship at Schole PARC. One afternoon, in the basement of the laboratory, he noticed that another researcher was repairing a long cable. This person was Metcaoff. He was exploring sending and receiving information between the new computer Alto in the laboratory. Methods. Metkafy tried to send an electric pulse through a cable, but he had not succeeded. Poggs took the initiative to help. In the next two years, the two designed the first version of Ethernet. The two of them were perfect partners, Metcaoff was like a conceptual artist, and Pogss was an engineer who built hardware in the background.
The first Ethernet system structure diagram drawn by Metcaov
Bogs was an amateur radio enthusiast when he was a child. He made a radio sending machine and chatted with other enthusiasts from all over the country at night. His brother remembers that the two of them pulled the antenna from the bedroom on the second floor to the roof above the garage. According to the biography of the IEEE Computer Association, Pergus used his experience as a radio enthusiast when he developed Ethernet with Metkaf. He then recognized the similarities between Metkov’s theory and radio radio technology.
Scholas submitted a patent application in 1975. In the same year, Metkaf and Pogz published the papers “Ethernet: distributed group exchange of local computer networks.” This is a landmark research.
Extraction papers “Ethernet: distributed packet exchange of local computer networks” of Metkov and Poggs “
At that time, Ethernet could transmit data at a speed of 2.94Mbps. The principle of Ethernet is to send tiny information packages between the computer and other devices (including printers). This method can work in the absence of cables and no cables. In the 1980s, it became a standard protocol for cable PC networks. In the late 1990s, it became the foundation of Wi-Fi. In the next two decades, it became the standard for family and office networks.
The original Ethernet circuit diagram
The strength of Ethernet is its fault tolerance: even if some data packets are lost -they inevitably lose -the network can continue to run.
In 1979, Metkaf founded a company called 3COM, which would commercialize Ethernet, while Pogis chose to stay in PARC as a researcher. Later, Poggs came to a research laboratory of DEC, one of the calculation giants in the 1970s and 1980s. Then he founded his Ethernet company LAN Media to sell a series of network devices to establish a protocol router and large network server. The company was later acquired by SBE for $ 8 million in 2000, and SBE was then acquired by Neonode in 2007. According to the recent estimation of IDC, today’s Ethernet switch market is worth more than $ 7.4 billion.
Before becoming a mainstream network agreement, Ethernet was challenged by several other technologies. Metkaf said that in the early 1980s, a competitor’s technical experts questioned the mathematical theory behind Ethernet. Poggs’s answer is clear, and he believes that it will never be used for a large number of computer connections.
Ethernet top exemption
If you use strict mathematics theory, Performance may not be proven to be a perfect technology, and theoretically it is even more unreachable. Many people try to improve it. However, it has been repeatedly proven to be feasible and has been included in the industry standards. It has never been replaced in the past 50 years, has been able to survive, and see it in almost all digital equipment environments.
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