The IBM 701 Electronic Data Processing Machine, known as the Defense Calculator while in development, was IBM’s first commercial scientific computer and its first series production mainframe computer, which was announced to the public on May 21, 1952. [1]

Some 25 times to 50 times faster than its predecessors, the 701 inaugurated IBM’s 700 series with rapid advancements in computing power, memory capacity and economy of size, making history as the company’s first electronic computer.

The IBM 701 Defense Calculator (1952) was IBM's first production computer. It was designed primarily for scientific calculation and included "microsecond circuits installed at critical locations ... to send electrical impulses from one unit to another at a speed faster than one-millionth of a second" devised at Columbia University's Watson Lab ...

IBM's first computer. Introduced in 1952, the 701 was designed for scientific work and research, which led to the development of the FORTRAN programming language.

Feb 5, 2019 · The year 1953 saw the development of IBM's 701 EDPM, which, according to IBM, was the first commercially successful general-purpose computer. The 701's invention was due in part to the Korean War effort.

May 27, 2017 · The IBM 701 computer was one of IBM’s first commercially available computers. Here are a few facts about the 701: The 701 was introduced in 1953. IBM sold only 30 units. It used approximately 4,000 tubes. Memory was stored on 72 CRT tubes called Williams Tubes with a total capacity of 2,048 words. The word size was 36 bits wide.

The 701 was the first IBM large-scale electronic computer manufactured in quantity and their first commercial scientific computer. It was the first IBM machine in which programs were stored in an internal, addressable, electronic memory.

Jul 22, 2014 · The Computer Pioneers is a video oral history project produced by Richard Jay Solomon. This segment of the series discusses the development of the IBM 701 model computer, also known as the Defense Calculator, in the early 1950s.

The IBM 701 (initially known as the IBM Defense Calculator) was IBM's first commercial computer; it was later described as being "key to IBM's transition from punched-card machines to electronic computers".

IBM 701, known as the "Defense calculator" while being developed, it was announced to the public on April 29, 1952, and was IBM's first commercial scientific computer. Its office computing siblings were the IBM 702 and the IBM 650.