DATAMATH CALCULATOR MUSEUM
Canon Canola L121F
|Date of introduction:||1972||Display technology:||Panaplex|
|New price:||Display size:||12|
|Size:||10.3" x 9.5" x 2.8"|
|Weight:||4 pounds 6 ounces||Serial No:||200697|
|Batteries:||n.a.||Date of manufacture:||year 1972|
|AC-Adapter:||220V||Origin of manufacture:||Japan|
|Precision:||12||Integrated circuits:||TMS0201, TMS0302|
|Program steps:||Courtesy of:||Joerg Woerner|
The Canon Canola L121F followed the famous Canola L121 with its unique combination of Large-Scale-Integrated (LSI) circuits and a Nixie tube display.
It represents a typical desktop calculator available in 1972.
From the technical view the L121F is from higher interest, it uses the TMS0201, TMS0302 calculator chip set developed by Texas Instruments. The chip set consists from on Data chip (TMS02xx) and one (TMS03xx) or two (TMS04xx) ROM chips. Both integrated circuits use 40-pin housings to drive a 12-digit display instead the 10-digit capability of the single-chip (TMS01xx) or first two-chip (TMS1824, TMS1825) solutions. Texas Instruments itself used this chip set with the SR-20, SR-22, TI-4000 and TI-450 calculators.
Please compare the quick evolution of the calculator technolgy:
|L100||1971||10||TMC1737, TMC1753, TMC1754, TMC1807|
|L100S||1972||10||TMS0106 single chip|
The display module is very similar to the later Panaplex™ manufactured by
Burroughs found in the TI desktop calculators.
The next desktop calculator in Canon's line were the nearly identical L1210 adding the square-root function, the L800 sporting the TMS0105 single-chip calculator chip and the somewhat larger L100S using the TMS0106 single-chip calculator chip.
The neat styling of the housing was continued with the Canola F-11 statistical desktop calculator and the Canola L1632.
If you have additions to the above article please email: email@example.com.
© Joerg Woerner, May 23, 2002. No reprints without written permission.