Texas Instruments TI-1104

Date of introduction:  1987 Display technology:  LCD
New price:   Display size:  8
Size:  4.4" x 2.5" x 0.40"
 111 x 64 x 10 mm3
Weight:  1.6 ounces, 45 grams Serial No:  
Batteries:  LR43 Date of manufacture:  mth 10 year 1987 (A)
AC-Adapter:   Origin of manufacture:  Taiwan (I)
Precision:  8 Integrated circuits:  
Memories:  1    
Program steps:   Courtesy of:  Ken H. Meine
    Download manual: (EU: 0.8M Bytes)

The TI-1104 was introduced in the year 1986 together with TI-1103. Both calculators are based on the TI-1100 II.

TI-1104_Switch.jpg (21147 Byte)Until 1989 a minimum of 15 stylish coloring schemes appeared. Please click on the picture at the right as a switchboard to all known versions of the TI-1103 and TI-1104 family.

We added this rare TI-1104 with its beautiful Magenta color in November 2022 to the Datamath Calculator Museum, more than 20 years after we started to hunt the different versions down. A big Thank You to fellow collector Ken H. Meine to keep his eyes open!

Dismantling this TI-1104 manufactured in October 1987 by Inventec Corporation in Taiwan reveals a clean design centered around an unknown single-chip calculator circuit soldered on a double-sided printed circuit board (PCB) and powered by a small LR43 battery.

Inspecting the PCB of the featured TI-1104 calculator brought our attention to a small mark reading IOTI1103-01A and we started compiling a list of the PCB-Marks on calculators manufactured by OEMs for Texas Instruments.

Funny to know that Texas Instruments created yet another design of the TI-1104 and introduced it under the Number Beat label.

If you prefer the AOS system, view the MathMate

AOS™ is a trademark of Texas Instruments.




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© Joerg Woerner, November 27, 2022. No reprints without written permission.