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Sharp Corporation’s Calculator Innovations

Collecting calculators you'll sooner or later recognize Japanese Sharp Corporation company. In the race started with the Cal-Tech project in the year 1965 and leading to the Canon Pocketronic calculator in the year 1970 they won some medals:

1969 Sharp introduced with the QT-8D the first calculator using LSI-IC's (Large-Scale-Integration Chips) manufactured by US company Rockwell Electronics
1969 Sharp introduced the first battery operated desktop calculator QT-8B
1970 First battery operated, handheld calculators: Busicom LE-120, Canon Pocketronic, Sanyo ICC-82D and Sharp EL-8.

The Sharp Corporation was founded in 1912 by Tokuji Hayakawa and takes its name from one of our founder's first inventions, the Ever Sharp propelling pencil, developed in 1915. Sharp introduced the world's first all-transistor desktop calculator in 1964. In the next 20 years they developed a lot of "firsts" in the calculator business, mainly together with its pioneering research into Liquid Crystal Display (LCD) technology. 

Compet 10 (CS-10A) World’s first all transistor-diode electronic desktop calculator 17.0" x 16.5" x 9.8" 55 lbs. ¥535,000 March 1964 530 transistors 
2300 diodes
CS-031A World’s first electronic calculator incorporating IC’s 18.9" x 15.7" x 8.7" 29 lbs. ¥350.000 1966 28 IC’s 
553 transistors 
1549 diodes
CS-16 World’s first calculator incorporating MOS IC‘s 13.0 x 11.5" x 5.0" 13 lbs.   March 1967 72 IC’s
Micro Compet QT-8D World’s first electronic calculator incorporating LSI’s 9.8" x 5.4" x 2.8" 3.1 lbs. ¥99.800 October 1969 4 LSI’s 
2 IC’s
EL-8 World’s first battery operated portable calculator 6.4" x 4.0" x 2.8" 20 oz.   November 1970 4 LSI’s 
2 IC’s
EL-805 World’s first COS electronic calculator 4.6" x 3.1" x 0.8" 7.1 oz. ¥26.800 May 15, 1973 1 LSI 
2 LCD drivers
EL-8020 World’s first calculator using Film Carrier System and yellow LCD 4.3" x 3.6" x 0.35" 2.3  oz. ¥7.500 1976 1 LSI Film Carrier System
EL-8026 First electronic calculator with solar cells 4.3" x 2.6" x 0.35" 2.3 oz. ¥24.800 1976 1 LSI Film Carrier System
EL-8130 World’s first touch key  calculator 4.9" x 2.7" x 0.2" 2.3 oz. ¥8.500 1977 1 LSI
EL-825 Very early electronic calculator powered with solar cells 5.3" x 3.9" x 0.25" 3.3 oz.   1979 1 LSI Film Carrier System
EL-8152 World’s first 1.6mm-thin electronic calculator 3.8" x 2.1" x 0.06" 1.3 oz. ¥7.900 1979 1 LSI Film Carrier System
EL-900 World’s thinest electronic calculator 2.1" x 3.7" x 0.03" 0.4 oz. ¥7.800 1985 1 LSI Film Carrier System

 

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If you have additions to the above article please email: joerg@datamath.org.

© Joerg Woerner,  December 15, 2001. No reprints without written permission.