DATAMATH CALCULATOR MUSEUM |
Texas Instruments LADY 1200
Date of introduction: | 1975 | Display technology: | LED-stick |
New price: | $14.88 | Display size: | 8 |
Size: | 5.5" x 2.8" x 1.4" 138 x 70 x 35 mm3 |
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Weight: | 3.9 ounces, 110 grams | Serial No: | S76-260727 |
Batteries: | 9V | Date of manufacture: | wk 38 year 1976 |
AC-Adapter: | AC9180 | Origin of manufacture: | USA |
Precision: | Integrated circuits: | TMS0972 | |
Memories: | |||
Program steps: | Courtesy of: | Joerg Woerner |
This
colorful calculator gives you a great lesson about marketing. The only changes compared
to the basic TI-1200 were the blue-yellow keyplate and a
off-white housing. With this
calculator Texas Instruments targeted a new market - the hand-bag of
modern women. A second attempt was made 13 years later again with the Nuance.
The new color of the housing was obviously used first with the Spirit of '76,
please study the serial number of this LADY 1200 carefully.
Dismantling
this LADY 1200 with
Date code 3876 LTA and manufactured in September 1976
in Lubbock, Texas reveals reveals an internal construction identical with the
TI-1200 Version 3 with a single-sided printed circuit
board (PCB) centered around a TMS0972 single-chip
calculator circuit based
on the TMS1000,
the World's first Microcomputer.
Learn
more about the evolution of the TI-1200 between March 1975 and its discontinuation in 1977.
Learn more about the different
Product Labels used with the TI-1200
- here at the Datamath Calculator Museum we classify the featured LADY 1200 as
Hardware Version 3, PCB Type 2 and Product Label Style 3, Blue on White.
Don't miss the rare
Texas Instruments
1265
manufactured for Koh-I-Noor
Hardtmuth and and the Trio for educational use, including the limited function ABLE calculator, the colorful TI-1205
and TI-1255.
If you have additions to the above article please email: joerg@datamath.org.
© Joerg Woerner, December 5, 2001. No reprints without written permission.