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Red: Century
Orange: Decade
Green: Year
Blue: Month
Purple: Day
Black: Event

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David Packard and Bill Hewlett found HP in a California garage. Their first product, the HP 200A Audio Oscillator, quickly became a popular piece of test equipment for engineers.

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Hewlett-Packard is founded

David Packard and Bill Hewlett found their company in a Palo Alto, California garage. Their first product, the HP 200A Audio Oscillator, rapidly became a popular piece of test equipment for engineers. Walt Disney Pictures ordered eight of the 200B model to test recording equipment and speaker systems for the 12 specially equipped theatres that showed the movie "Fantasia" in 1940.

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1939 | Timeline of Computer History | Computer History Museum

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Hewlett-Packard is founded David Packard and Bill Hewlett found their company in a Palo Alto, California garage. Their first product, the HP 200A Audio Oscillator, rapidly became a popular piece of test equipment for engineers. Walt Disney Pictures ordered eight of the 200B model to test recording equipment and speaker systems for the 12 specially equipped theatres that showed the movie "Fantasia" in 1940.

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1940 - The Complex Number Calculator is completed

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1940 - The Complex Number Calculator is completed

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Created By Bell Telephone Laboratories

Designed by  George Stibitz.

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In 1939, Bell Telephone Laboratories completes this calculator, designed by scientist George Stibitz. In 1940, Stibitz demonstrated the CNC at an American Mathematical Society conference held at Dartmouth College. Stibitz stunned the group by performing calculations remotely on the CNC (located in New York City) using a Teletype terminal connected to New York over special telephone lines. This is likely the first example of remote access computing.

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1940 | Timeline of Computer History | Computer History Museum

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In 1939, Bell Telephone Laboratories completes this calculator, designed by scientist George Stibitz. In 1940, Stibitz demonstrated the CNC at an American Mathematical Society conference held at Dartmouth College. Stibitz stunned the group by performing calculations remotely on the CNC (located in New York City) using a Teletype terminal connected to New York over special telephone lines.

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1942 - The Atanasoff-Berry Computer (ABC) is completed

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1942 - The Atanasoff-Berry Computer (ABC) is completed

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After successfully demonstrating a proof-of-concept prototype in 1939, Professor John Vincent Atanasoff receives funds to build a full-scale machine at Iowa State College (now University). The machine was designed and built by Atanasoff and graduate student Clifford Berry between 1939 and 1942. The ABC was at the center of a patent dispute related to the invention of the computer, which was resolved in 1973 when it was shown that ENIAC co-designer John Mauchly had seen the ABC shortly after it became functional.

The legal result was a landmark: Atanasoff was declared the originator of several basic computer ideas, but the computer as a concept was declared un-patentable and thus freely open to all. A full-scale working replica of the ABC was completed in 1997, proving that the ABC machine functioned as Atanasoff had claimed. The replica is currently on display at the Computer History Museum.

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1942 | Timeline of Computer History | Computer History Museum

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After successfully demonstrating a proof-of-concept prototype in 1939, Professor John Vincent Atanasoff receives funds to build a full-scale machine at Iowa State College (now University). The machine was designed and built by Atanasoff and graduate student Clifford Berry between 1939 and 1942.

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1948 - First Computer Program to Run on a Computer

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1948 - First Computer Program to Run on a Computer

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1948 | Timeline of Computer History | Computer History Museum

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Started in 1943, the ENIAC computing system was built by John Mauchly and J. Presper Eckert at the Moore School of Electrical Engineering of the University of Pennsylvania.

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stored 1 million bits on its magnetic drum

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The Standards Eastern Automatic Computer (SEAC) is among the first stored program computers completed in the United States. It was built in Washington DC as a test-bed for evaluating components and systems as well as for setting computer standards. It was also one of the first computers to use all-diode logic, a technology more reliable than vacuum tubes. The world's first scanned image was made on SEAC by engineer Russell Kirsch in 1957.

The NBS also built the Standards Western Automatic Computer (SWAC) at the Institute for Numerical Analysis on the UCLA campus. Rather than testing components like the SEAC, the SWAC was built using already-developed technology. SWAC was used to solve problems in numerical analysis, including developing climate models and discovering five previously unknown Mersenne prime numbers.

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1950 | Timeline of Computer History | Computer History Museum

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The Standards Eastern Automatic Computer (SEAC) is among the first stored program computers completed in the United States. It was built in Washington DC as a test-bed for evaluating components and systems as well as for setting computer standards. It was also one of the first computers to use all-diode logic, a technology more reliable than vacuum tubes.

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The typical PDP-1 computer system, which sells for about $120,000, includes a cathode ray tube graphic display,, needs no air conditioning and needs only one operator; all of which become standards for minicomputers.

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1960 | Timeline of Computer History | Computer History Museum

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An early transistorized computer, the NEAC (Nippon Electric Automatic Computer) includes a CPU, console, paper tape reader and punch, printer and magnetic tape units. It was sold exclusively in Japan, but could process alphabetic and Japanese kana characters. Only about thirty NEACs were sold.

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Kenneth Iverson's book A Programming Language details a form of mathematical notation that he had developed in the late 1950s while an assistant professor at Harvard University. IBM hired Iverson and it was there that APL evolved into a practical programming language. APL was widely used in scientific, financial, and especially actuarial applications. Powerful functions and operators in APL are expressed with special characters, resulting in very concise programs.

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1962 | Timeline of Computer History | Computer History Museum

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Kenneth Iverson's book A Programming Language details a form of mathematical notation that he had developed in the late 1950s while an assistant professor at Harvard University. IBM hired Iverson and it was there that APL evolved into a practical programming language. APL was widely used in scientific, financial, and especially actuarial applications.

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Amdahl Corporation introduces the Amdahl 470

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Amdahl Corporation introduces the Amdahl 470

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Gene Amdahl, father of the IBM System/360, starts his own company, Amdahl Corporation, to compete with IBM in mainframe computer systems.

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1970 | Timeline of Computer History | Computer History Museum

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SRI International´s Shakey robot becomes the first mobile robot controlled by artificial intelligence. Equipped with sensing devices and driven by a problem-solving program called STRIPS, the robot found its way around the halls of SRI by applying information about its environment to a route.

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Commodore releases the VIC-20 home computer as the successor to the Commodore PET personal computer.

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PowerBook series of laptops is introduced

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PowerBook series of laptops is introduced

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Apple's Macintosh Portable meets with little success in the marketplace and leads to a complete redesign of Apple's line of portable computers.

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Japan's SoftBank introduces the first camera phone, the J-Phone J-SH04; a Sharp-manufactured digital phone with integrated camera.