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Toshiba vs. Texas Instruments

Browsing some pictures of early calculators sold by Toshiba you'll easily notice similarities with calculators from Texas Instruments. Up to now we don't know the relationship between the companies, let the pictures speak themselfes.

Toshiba LC-833 and TI-1790 Datachron

 Most copied calculator. Introduced in the year 1978.

 

Toshiba LC-844 and TI-1750

 Like LC-834, but small housing. Same housing, introduced 1977.

 

Toshiba SLC-8260 and TI-25

 New design line for Toshiba. Same housing, introduced 1978.

 

Toshiba LC-825 and TI-1750-II

 Smaller housing than LC-844. Same housing, introduced 1980.

 

Toshiba LC-847 and TI-1766 (1st version)

 New housing with huge solar cells. Same housing, introduced 1980.

 

Toshiba LC-847 II and TI-1766 (2nd version)

 New housing with huge solar cells. Same housing, introduced 1980.

 

Toshiba SLC-8410 and TI-30 SLR

Use similar calculator chip. First solar, introduced 1982.

 

Toshiba HB-102 and TI-1100

Introduced in the year 1982. Just some styling variations.

 

Toshiba HB-103 and TI-1006

Introduced in the year 1982. Just some styling variations.

 

Toshiba LC-1028PV and TI-5010

Introduced in the year 1981. Just some styling variations in 1982.

 

TI-66 Programmable

The only "official" Toshiba calculator ! Source: TI Japan

 

 

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

© Joerg Woerner, May 22, 2001. No reprints without written permission.