Human Computer Interaction (CMPB 354)
IBM 701 EDPM
History of IBM
IBM stands for International Business
Machines, the largest computer company in the
The company incorporated in 1911, starting as a
major producer of punch card tabulating
In the 1930s, IBM built a series of calculators
(the 600s) based on their card processing
IBM 701 EDPM Control Board
The development of IBM's 701 EDPM in year
The 701's invention was part of the Korean War
Thomas Johnson Watson, Jr. wanted to
contribute a "defense calculator" to aid in the
United Nations' policing of Korea.
Internal Operations & Memory
Were built using vacuum tube technology
which made use of special sealed tubes.
Vacuum tubes operated at a very high
temperature. They took from several seconds to
several minutes to "warm up" to operating
Mercury memory of the UNIVAC I and the
electrostatic memory used in UNIVAC 1103
and IBM 701.
IBM "Type 701 EDPM"
The IBM 701 was the first computer produced by
IBM. Designed primarily for scientific calculations, the
701 machine featured the IBM-invented tape drive
vacuum column, an innovation which paved the way
for magnetic tape to become a popular storage
medium. The 700 series of machines, including the 704,
709, and eventually the 7090 and 7094, dominated the
large mainframe market for the next decade, and
brought IBM from computer obscurity to first place in
that same time period.
A Programming Language Evolves
The 701 also led to the development of the
programming language FORTRAN.
A year later, the first successful high level
programming language was created. This was a
programming language not written in 'assembly'
or binary, which are considered very low level
languages. FORTRAN was written so that more
people could begin to program computers easily.
The 700 series of machines, including the 704,
709, and eventually the 7090 and 7094,
dominated the large mainframe market for the
next decade, and brought IBM from computer
obscurity to first place in that same time period.