Back in 1984, Leonard Bosack and Sandy Lerner were both working at Stanford and were married. They met at a computer lab in the university. Bosack was the director of computer facilities in the science department and Lerner became the director of computer facilities at the graduate school of business.
At the time, Stanford University computers were not able to communicate with each other. Because of this challenge and need to communicate with other systems, something called a blue box would be developed and used on the campus to connect each LAN to one another.
With the success of this blue box in both the Stanford campus and other universities, Bosack and Lerner decided to form a business on what would be the Cisco router. In 1984 Cisco was born.
The image shown here is the Cisco router that connected Stanford to the Internet.
You can read more about the Cisco story from The Internet: A Historical Encyclopedia.