From Wikipedia,
the free encyclopedia
Masatoshi Shima (嶋正利
Shima Masatoshi, born on
August 22,
1943 in
Shizuoka,
Japan) was at least partly
responsible for the design of the
world's first
microprocessor, the
Intel 4004.
He studied
organic chemistry at
Tohoku University in
Sendai,
Japan. With poor prospects for
employment in the field of
chemistry, he went to work for
Busicom, a business calculator
manufacturer. There, he learned
about software and digital circuit
design. When Busicom decided to
use
LSI circuits in their
calculator products, they
approached the
American companies
Mostek and
Intel for help. Masatoshi
Shima ultimately worked closely
with
Marcian "Ted" Hoff and
Federico Faggin of Intel to
complete the design of the Intel
4004 microprocessor.
Later, he worked for
Intel on the design of the
Intel 8080 and then left Intel
along with Faggin and designed the
Zilog Z80 and
Zilog Z8000.
