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Texas Instruments

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.
Please consider donating your old computer / videogame system to or one of our partners from anywhere in the world (Europe, America, Asia, etc.).


Attempting to use the add info button on your site, throws a 500 error on POST.
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Thursday 28th May 2015
Denny Mingus

I''d like to share some photos of the TI LCM modules. I have the 1001, 1002, 1003 and 1004. Please contact me.

Thursday 28th May 2015
Denny Mingus (USA)

"Adam Roman (USA, Chicago area)

I have the original 57-page Data Manual from October 1976 for the SBP0400A and SBP0401A 4-Bit-Slice I2L Processor Elements. This is contained in TI''''s December 1977 Bipolar Microcomputer Components Databook. The book also contains the full revised Data Manual for the SN74S481 / SN54S481 / SN74LS481 4-Bit-Slice Schottky Processor Elements. I can scan and post these if anyone needs them."

Very interested datasheet on SBP0400!!! Please, if it is not difficult, to send this datasheet to my email:

Sunday 23rd February 2014


NAME  LCM-1001
MANUFACTURER  Texas Instruments
TYPE  Home Computer
YEAR  1976
KEYBOARD  Data / address / control switches
CPU  4-bit SPB0400
SPEED  Unknown
RAM  Unknown
I/O PORTS  40-pin socket
POWER SUPPLY  external AC adaptor or rechargeable battery
PERIPHERALS  Expansion modules (?)
PRICE  about $280

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