Speak & Read

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Speak & Read was an electronic learning aid made in 1980, by Texas Instruments. Speak and Read was part of a family of learning toys aimed at different subjects, i.e. "Speak and Math" and "Speak and Spell".

Speak & Read was designed to help children from ages 4 to 8 develop and improve their reading comprehension and vocabulary. [1] Speak & Read came with a companion booklet for use with the various skill activity modes included in the unit. The learning toy had a vocabulary of 250 words. [2]

Contents 1 Electronics 2 Games included 3 References 4 External links

[edit] Electronics

The display was a vacuum fluorescent display (VFD). Speak & Read units utilized a membrane keyboard for input. The Speak & Read used a single-chip voice synthesizer, the TI TMC0280 (later called the TMS5100), that was also used in the Speak & Spell. The TMS5100 utilized a 10th-order linear predictive coding (LPC) model and the electronic DSP logic.^[1].

LPC encoded speech data was stored on a pair of TMS6100 128 Kbit metal gate serial PMOS ROMs. 128 Kbit was a very large capacity ROM in the early 1980s. Additional memory modules could be plugged into a slot in the battery compartment and selected via a button on the keyboard. A later model, the Super Speak & Read, had a much slimmer case and an LCD screen rather than a VFD screen.

The unit could use either 4 "C" batteries or 6 volt DC power adapter with positive tip polarity.

[edit] Games included

Speak & Read had five built-in learning games: Word Zapper, Word Maker, Read It, Picture Read, Letter Stumper, and Hear It. Picture Read required looking up pictures in the supplementary booklet that came with the unit. Eight expansion modules were known to have been made for the Speak & Read by 1986.

A picture of the Speak & Read can be found here: [3]

[edit] References

[edit] External links

• Datamath - Speak & Read information page
• The Chip Collection at the Smithsonian - TI Speak & Read Learning Aid