Texas Instruments Computer Fun (United Kingdom)

Date of introduction:  1990 Display technology:  LCD
New price:   Display size:  Graphics
Size:  9.5" x 12.5" x 2.5"    
Weight:  2 pounds 3 ounces Serial No:  5181571
Batteries:  4*AA cells Date of manufacture:  wk 27 year 1990
AC-Adapter:   Origin of manufacture:  USA
Precision:   Integrated circuits:  TSP50C44 (CSM44017),
 TSP60C19 (CMM19040),
 HD44102, HD44105
Program steps:   Courtesy of:  Joerg Woerner

ComputerFun_UK_1.jpg (30463 Byte)Nothing else than the British speaking edition of the Computer Fun introduced two years earlier in the United States.

ComputerFun_UK_2.jpg (353262 Byte)Please remember that American English and British English are different, e.g. "color and math" vs. "colour and maths". For that reason Texas Instruments developed a new set of Speech-ROMs just for United Kingdom. Everything else is identical with the original US-version of the educational toy. 

ComputerFun_UK_PCB.jpg (282100 Byte)Dismantling this Computer Fun manufactured in July 1990 by Texas Instruments in the United States for the British speaking market reveals a rather complex printed circuit board (PCB). The design of the Computer Fun is centered around four different Integrated Circuits:

TSP50C44/CSM44017: TSP50C50 VSP (Voice Synthesis Processor) with 8-bit microcontroller and 16k Bytes Mask ROM for both program and voice and 128 Bytes + 16 Nibbles RAM
TSP60C19/CMM19040: VSM (Voice Synthesis Memory) with 256k Bits
Hitachi HD44102: Column Driver for monochrome dot matrix liquid crystal display with 4-bit and 8-bit Interface for up to 50 columns
Hitachi HD44105: Common (Row) Driver for monochrome dot matrix liquid crystal display with 4-bit and 8-bit Interface for up to 32 rows

The regional definition of the Computer Fun is accomplished with different Mask Versions for the ROMs of both the VSP and VSM:

American Voice: TSP50C44/CSM44012 and TSP60C19/CMM19006
British Voice: TSP50C44/CSM44017 and TSP60C19/CMM19040
German Voice: TSP50C44/CSM44024 and TSP60C19/CMM19xxx

In other countries the Computer Fun got not only other voices, even the keyboard layout changed. Don't miss the German Computer Fun.

Later a similar product was sold with the Mouse Computer.

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If you have additions to the above article please email:

Joerg Woerner, July 12, 2005. No reprints without written permission.