eniac
Eniac
That was the name of the first programmable electronic computer, and it was used to break codes used by the Germans.
The first electronic computer was called the ENIAC (Electronic Numerical Integrator and Computer).
1936 Konrad Zuse - Z1 Computer First freely programmable computer.
Alan Turing, I think. He made the computer, I am not to sure. Turing was British not American. The first American to invent a programmable computer was likely Vanevar Bush in 1929, but his was analog electromechanical, it was called the Differential Analyzer. The first American to invent an electronic digital computer was John Vincent Atanasoff, but his was not programmable, while it had no name at the time it was built it was later called the Atanasoff-Berry Computer. The first American to invent a programmable digital computer was Howard Aiken, but his was electromechanical, it was called the Harvard Mark I. The first programmable electronic digital computer was invented by Thomas Flowers of the British Post Office in 1942, called Colossus it was used to crack the German high command's cyphers (with 11 machines built prior to the end of the war, it was the only digital computer built prior to 1950 in a quantity greater than 1). The first Americans to invent a programmable electronic digital computer were John Mauchly and J. Presper Eckert, but their machine ENIAC was a dead end architecture that was very difficult to program. The first programmable electronic digital computer resembling modern ones in architecture, called the Manchester Baby, was built by the British in 1948, but it had a minuscule memory of only 32 words of 32 bits each. Practical programmable electronic digital computers resembling modern ones in architecture really had to wait for the early 1950s and by then inventions only covered improvements in specific design detail, not whole computers.
The first electronic programmable computer was known as Colossus. Please see the related link. The Prototype 'Colossus Mark 1' was working in 1944. The first freely programable computer was the Z1 built between 1936 and 1938.
The name of the first commercially available electronic digital computer is UNIVAC.
The complete name of the first lady computer programmer is Ada Byron Lovelace. She and Charles Babbage created the world's first programmable computer, the Analytical Engine.
The first electronic and digital computer is the Mark 1 Machine (also known as "Automatic Sequence Controlled Calculator").
apple
I'd say it was a calculator
"Colossus". It was designed by Tommy Flowers of the British Post Office and built by the engineering team at Bletchley Park (in England) to help crack the Nazi "Fish ciphers" during World War II. There were 10 of them built before VE day, making it not only the first programmable electronic digital computer built but the first computer built in a quantity larger than one before 1952 (when the UNIVAC I went into production).