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website/content/museum/texas-instruments-lcm-1001.md
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yann64andClaude Opus 5.5 b274874139 All machines linked to their forum thread (full comment import)
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Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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2026-10-13 17:26:43 +02:00

2.4 KiB

title, categories, types, origins, years, cpus, params
title categories types origins years cpus params
Texas Instruments LCM-1001
Computers
Home Computer
U.S.A.
1976
4-bit SPB0400
name image company company_name specs tabs forum_thread photos oc_id source
LCM-1001 /media/museum/photos/texas_lcm1001_system_s1.jpg /companies/texas-instruments Texas Instruments
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NAME LCM-1001
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MANUFACTURER Texas Instruments
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TYPE Home Computer
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ORIGIN U.S.A.
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YEAR 1976
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BUILT IN LANGUAGE None
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KEYBOARD Data / address / control switches
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CPU 4-bit SPB0400
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SPEED Unknown
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RAM Unknown
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I/O PORTS 40-pin socket
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BUILT IN MEDIA None
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POWER SUPPLY external AC adaptor or rechargeable battery
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PERIPHERALS Expansion modules (?)
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PRICE about $280
photos
973
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CPU CARD The empty socket was used to add expansion modules. /media/museum/photos/texas_lcm1001_cpucard_s1.jpg
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THE BOX /media/museum/photos/texas_lcm1001_box_s1.jpg
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INSTRUCTION MANUAL /media/museum/photos/texas_lcm1001_system_s2.jpg
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SYSTEM DIAGRAM Probably the simpler computer architecture ever seen! /media/museum/photos/texas_lcm1001_diagram_s1.jpg
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TI PLATE /media/museum/photos/texas_lcm1001_plate_s1.jpg
999
url date
https://web.archive.org/web/20230227233124/http://www.old-computers.com/museum/computer.asp?c=999 2023-02-27

Almost no information about this 'computer' which was probably the first microprocessor trainer Texas Instruments produced.

The system held two chips, a quad-Nand 74279 logic chip and a 4-bit SPB0400 processor which was the first processor made using the VLSI process technology.

One programmed it through various switchs, results were displayed on LED diodes.

Thanks to Steve Perry for information and pictures.

We need more info about this computer ! If you designed, used, or have more info about this system, please send us pictures or anything you might find useful.