DATAMATH CALCULATOR MUSEUM |
Texas Instruments TI-1040A Tax Pak
Date of introduction: | 1981 | Display technology: | LCD |
New price: | Display size: | 8 | |
Size: | 4.6" x 2.6" x
0.35" 116 x 66 x 9 mm3 |
||
Weight: | 1.9 ounces, 54 grams | Serial No: | |
Batteries: | 2*LR43 | Date of manufacture: | wk 51 year 1980 |
AC-Adapter: | Origin of manufacture: | USA (ATA) | |
Precision: | 8 | Integrated circuits: | TP0311 |
Memories: | 1 | ||
Program steps: | Courtesy of: | Joerg Woerner | |
Download manual: | (US: 1.7M Bytes) |
This TI-1040 was sold together with some unknown accessories as "TI-1040A Tax Pak" and looks at first glance like a standard TI-1001. Comparing these two calculators reveals an astonishing difference: These calculators make use of two different display frames:
•
Rectangular design: TI-1001,
TI-1031, TI-1850,
TI-1880,
E.T. calculators.
• Rounded design: TI-1010,
TI-1030, TI-1040,
TI-1070 calculators.
Collectors, I need your help. If you know the accessories delivered with the TI-1040A Tax Pak, please contact me: joerg@datamath.org
This particular calculator was manufactured in December 1980 and makes still use of the printed circuit board (PCB) and single-chip calculator circuit TP0311 introduced in 1978 with the TI-1030.
TI-1040A
Tax Pak The fast, easy, way to complete your 1980 income tax short form. Here’s everything you need to finish your 1040A short form. The Do-It-Yourself Tax Guide leads you through each item on the 1040A form. Complex tax jargon is presented in easy-to-understand, everyday English. Also included are official IRS 1040A tax forms, instructions and an envelope. The TI-1040 speeds calculations and reduces math errors. Four-key memory, percent and square root and automatic constant. The easy-to-read 8-digit liquid crystal display and APD* (automatic power down), a special battery-saving feature, make this sleek and stylish calculator even easier to use. * Registered Trademark of Texas Instruments Incorporated © Texas Instruments, 1981 |
If you have additions to the above article please email: joerg@datamath.org.
© Joerg Woerner, March 6, 2006. No reprints without written permission.