Texas Instruments TI-603D

Date of introduction:  1992 Display technology:  LCD
New price:   Display size:  8
Size:  4.6" x 2.6" x 0.45"
 117 x 65 x 11 mm3
Weight:  1.7 ounces, 48 grams Serial No:  
Batteries:  n.a. Date of manufacture:  mth 04 year 1995
AC-Adapter:   Origin of manufacture:  Malaysia (I)
Precision:  8 Integrated circuits:  
Memories:  1    
Program steps:   Courtesy of:  Joerg Woerner

TI-603D_1.jpg (16174 Byte)This TI-603D is an unique calculator in TI's long line of so-called "four bangers". At first glance it looks like a common TI-1766 III but we notice the uncommon [DAY] key in the upper row of the keyboard. This key allows the easy calculation of the "Day of the Week". 

EXAMPLE: To obtain the week day for June 4, 1960 press:
[ON/C][DAY] 04 06 60 [DAY]. The display indicates that the curator of this website was born at a Saturday.
The TI-603D is Y2K compatible, in the 21st century the year is entered as a 4-digit number.

TI-603D_PCB.jpg (49813 Byte)The day-month-year entry indicates that the TI-603D was sold only on the European market. Dismantling the calculator reveals a small surprise, the printed circuit board (PCB) is labeled with TI-1763. Up to now this number was unknown...

TI-603D_2.jpg (122078 Byte)The predecessor TI-603 has nothing in common with the TI-603D. Nevertheless showed the box of the TI-603D a flaw.

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Joerg Woerner, October 10, 2003. No reprints without written permission.