- than
electronic calculators. Consequently, in
specialized applications,
comptometers remained in use in
limited numbers into the
early 1990s, but with the...
- the only
other competitor in true
commercial production, had sold 100
comptometers in
three years. The 19th
century also saw the
designs of
Charles Babbage...
- the only
other competitor in true
commercial production, had sold 100
comptometers. It wasn't
until 1902 that the
familiar push-button user
interface was...
-
Florida Tech Easy
Instructions for
Operation the
Controlled Key
Comptometer,
Comptometer Division, Felt and
Tarrant Mfg. Co., Chicago, 1917, p. 12 Carl...
- era coat buttons; a
collection of
Montie Montana memorabilia; a 1915
comptometer; and a 2005
Suzuki GSX-R 1300
Hayabusa motorcycle.
Upset over dwindling...
- not gain
widespread use
until Dorr E. Felt
started manufacturing his
comptometer (1887) and
Burroughs started the
commercialization of
differently conceived...
-
larger facilities in Dyersville, Iowa 1967 - Ertl is
acquired by
Victor Comptometer Corporation 1971 - Ertl
acquires Carter Tru-Scale 1973 - Ertl begins...
- men's
lives and
concentrated on a
career in computing, from 1916
selling comptometers in
Belfast in Ireland. She
regularly kept in
touch with C****’s family...
- to help
support her family. She lost her
first job (as a
typist and
comptometer operator)
after taking her
guitar to work and
playing it
during tea-breaks...
-
designs were
completed in Babbage's lifetime. The
Arithmometer and the
Comptometer are
mechanical computers that are
precursors to
modern digital computers...
