Catalog of Inventions and Discoveries
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5 entries found
From Mechanical Calculators to Electronic Computers
Between the 1930s and 1950s, computing shifted from mechanical and electromechanical calculators to fully electronic machines. Pioneering devices including Konrad Zuse's Z3, the Harvard Mark I, and the vacuum-tube ENIAC established the stored-program architecture that underlies virtually every computer built since.
1930s–1950s
The Transistor and the Miniaturization of Electronics
In December 1947, Bell Labs physicists John Bardeen and Walter Brattain built the first working transistor, a tiny semiconductor device that could amplify and switch electrical signals. Together with William Shockley's subsequent junction design, the invention replaced bulky vacuum tubes and triggered decades of electronic miniaturization.
1947
The Integrated Circuit and the Growth of Modern Computing
Between 1958 and 1959, Jack Kilby of Texas Instruments and Robert Noyce of Fairchild Semiconductor independently invented the integrated circuit, fitting multiple electronic components onto a single chip. Their parallel breakthroughs eliminated the hand-wiring that limited earlier electronics and became the foundation of modern computing.
1958–1959
The Origins and Expansion of the Internet
The internet began in 1969 as ARPANET, a U.S. government research network built on packet-switching ideas developed independently by several computer scientists. Standardized by the TCP/IP protocols of Vint Cerf and Robert Kahn and expanded through the National Science Foundation's NSFNET, it grew from a small academic tool into the global, commercially operated network underlying modern digital life.
1969 onward
The World Wide Web and the Organization of Online Information
In 1989, Tim Berners-Lee proposed a hypertext system for sharing documents among researchers at CERN, then built the first web browser, server, and addressing protocols by late 1990. Made publicly available in August 1991, his invention transformed the existing Internet into the searchable, linked system of information now known as the Web.
1989–1991