Transcript Document

1936-The Z1
Originally named the V1, the Z1 began development in 1936 by
Germany's Konrad Zuse in his parents living room and today is
considered the first electro-mechanical binary programmable
computer. The Z1 had 64-word memory (each word contained 22
bits) and a clock speed of 1 Hz. To program the Z1 required that the
user insert punch tape into a punch tape reader and all output was
also generated through punch tape.
1942 ABC
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The Atanasoff–Berry Computer was made in 1942 and was
not programmable. It was invented by John Vincent
Atanasoff. The ABC pioneered important elements of modern
computing, including binary arithmetic and electronic
switching elements.
1944 Harvard Mark I Computer
The ASCC was built from switches, relays,
rotating shafts, and clutches. It used 765,000
components and hundreds of miles of wire,
comprising a volume of 51 feet (16 m) in
length, eight feet (2.4 m) in height, and two
feet (~61 cm) deep. It had a weight of about
10,000 pounds (4500 kg). The basic calculating
units had to be synchronized mechanically, so
they were run by a 50-foot (~15.5 m) shaft
driven by a five-horsepower (4 kW) electric
motor
1946 ENIAC 1 Computer
Electronic Numerical Integrator And Computer was the
first electronic general-purpose computer. It was Turingcomplete, digital, and capable of being reprogrammed to
solve a full range of computing problems.
ENIAC was designed to calculate artillery firing tables for
the United States Army's Ballistic Research Laboratory.
When ENIAC was announced in 1946 it was heralded in the
press as a "Giant Brain". It had a speed of one thousand
times that of electro-mechanical machines.
1951 UNIVAC Computer
The UNIVAC I was the second commercial computer produced
in the United States. It was designed principally by J. Presper
Eckert and John Mauchly, the inventors of the ENIAC. Design
work was begun by their company, Eckert–Mauchly Computer
Corporation, and was completed after the company had been
acquired by Remington Rand (which later became part of
Sperry, now Unisys). In the years before successor models of
the UNIVAC I appeared, the machine was simply known as
"the UNIVAC".
IBM 701 EDPM Computer
Jump to: navigation, search IBM 701 operator's console IBM
701 processor frame Williams tube from an IBM 701 at the
Computer History Museum The IBM 701, known as the
Defense Calculator while in development, was announced to
the public on April 29, 1952, and was IBM’s first commercial
scientific computer.[1] Its business computer siblings were
the IBM 702 and IBM 650.