DATAMATH CALCULATOR MUSEUM
|
DATAMATH CALCULATOR MUSEUM |
Homeland 8105 by Toshiba
| Date of introduction: | 1976 | Display technology: | Fluorescent |
| New price: | Display size: | 8 | |
| Size: | 5.4" x 3.0" x 0.8" | ||
| Weight: | 3.5 ounces | Serial No: | F011292 |
| Batteries: | 2*AA | Date of manufacture: | year 1976 |
| AC-Adapter: | Origin of manufacture: | Japan | |
| Precision: | 8 | Integrated circuits: | TMS1071 |
| Memories: | 1 | ||
| Program steps: | Courtesy of: | Joerg Woerner |
Tokyo
Shibaura Electric Co., Ltd., better known as Toshiba - the official name since
1978 - introduced early in their history the Homeland brand.
This Homeland 8105 is a typical Japanese calculator using a
green VF-Display (Vacuum Fluorescent Display), a solid keyboard and a somewhat boring
styling.
Dismantling
the Homeland 8105 reveals with the TMS1071
the first first use of the TMS1070, a modification of the original
TMS1000
LSI MOS chip to directly interface with low-voltage VFDs up to 35 Volts. We know it already from the
TI-2550 II
introduced in 1975. The TMS1070 was soon replaced with the
TMS1040
Product Portfolio and
Toshiba
introduced the model
Homland
8109.
If you have additions to the above article please email: joerg@datamath.org.
© Joerg Woerner, February 29, 2004. No reprints without written permission.