IBM
SPEAKERS BUREAU SLIDE SHOW
Slide
6
Abacus
However, the most widely used device at the time was the Abacus,
developed by the Chinese and used all over the world. Abacus
operators became extremely proficient - probably because they
had to use mental abilities that are not needed with today's
accounting machines.
This fact was displayed in Japan in 1946. An American GI with
an electric adding machine and a Japanese accountant with
an abacus had a competition. The Abacus was faster in all
except multiplication.
Back to history. The need for other aids was becoming apparent.
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