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

Homeland8105_Label.jpg (24634 Byte)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.   

Homeland8105_PCB.jpg (43483 Byte)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.


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Joerg Woerner, February 29, 2004. No reprints without written permission.