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Technical Specification
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Introduction date: Clock Speed: Technology: Display: Chipset: Precision: Calculation Time: Memory: Size: |
May 1970 0,07 MHz P-MOS multichip technology 8 pieces nixie tubes Sanyo: LM8001, LM8002, LM8003, LM8004 16 about 0,4 seconds none 133 mm x 210 mm x 50 mm (5.25" x 8.25" x 2") |
History
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In May 1970 Sanyo Electronics (Japan) entered the market of
portable, electronic calculators with the ICC-82D (Integrated Circuit Calculator). At this time was these calculator the smallest portable electronic calculator with display on the market. The used nixie tubes for a portable calculator were only a temporary solution. In January 1971 Sanyo introduced the second design of the ICC-82D with amber colored gas-discharge tubes with seven-segment layout. The clean and robust design was based on four IC's LM8001,8002,8003,8004 with a clock speed of 0,07 MHz. These chip-set was manufactured under license of General Instruments Corp. together with Rockwell and Texas Instruments. They were one of the pioneers in the development of LSI circuits (Large-Scale-Integration) in MOS technology. reference: http://www.datamath.org/ |
 Sanyo ICC-82D |
 ...clean design... |
 ...the nice brain in white ceramic and gold... |
 ...8 nixie tubes for displaying... |
 ...hand wired keyboard with reed contacts... |
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