Desk Top Calculation
Desk
top - commercial use
1875
- Frank Baldwin - Philadelphia - Factory to build the first desk top calculator. (Not keys or printing)
1885
- Dorr E Felt - Comptometer - First keyboard calculator (later a printing
method was added)
1892
- Burroughs - Printing adding machine
1900
- 1910 wide acceptance of the adding machine
1920's
Electric motors introduced to these devices.
Note: All of these plus the punch
card accounting machines worked exceptionally
well in the business areas but scientific needs required something more
sophisticated. Science uses would
require many manually repeated steps and sorts. This led to the development of advanced programmed computer
concepts using mechanical methods from 1920's through 1940's when ENIAC
inaugurated the Electronic age in the computing area.
The word "computer", for centuries,
referred to a person who did
calculations for a living.
We now refer to an ELECTRONIC COMPUTER
ELECTRONIC BRAIN was popular terminology in 1950's