Texas Instruments Computer Fun

Date of introduction:  1988 Display technology:  LCD
New price:  $63.75 (1992) 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 (CSM44012),
 TSP60C19 (CMM19006),
 HD44102, HD44105
Program steps:   Courtesy of:  Joerg Woerner

Texas Instruments introduced with the Computer Fun a perfect combination of their superb speech synthesizer technology known from products like the Super Speak & Spell and the appearance of a small notebook. 

ComputerFun_UK_1.jpg (30463 Byte)The small graphics screen, the arrow keys and the function keys let you play one of 12 different preprogrammed games.


Letter Play: Letter recognition and keyboard layout familiarity.
Make-A-Word: Spelling skills.
Word Hunt: Word skills, scrolling screens and cursor keys.
Sentence Maker: Basic sentence structure, logical thinking and
   understanding cause and effects.
Silly Stories: Sentence structure, story composition and keyboarding


Number Play: Number recognition and counting skills.
Robot Moves: Sequencing and memory skills.
Spot Count: Counting and set recognition skills.
Digging Up Bones: Addition and subtraction skills.
Fetch That Number: Problem-solving skills, solving equations.


Creature Creation: Creativity and imagination.
Aerobotics: Procedural thinking and simple programming skills.

The toy is intended for players ages 4 to 8.

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

TSP50C44/CSM44012: 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/CMM19006: 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 like United Kingdom 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.

The Computer Fun is featured in the Texas Instruments Incorporated leaflet Follow the Learning Path dated 1991.

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If you have additions to the above article please email:

Joerg Woerner, December 5, 2001. No reprints without written permission.