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

<table> <tr> <td></td> <td>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.</td> <td></td> </tr> </table>