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Speak & Read is an electronic learning aid made in 1980, by Texas Instruments. Speak and Read was part of a family of learning toys i.e. "Speak & Math" and "Speak & Spell". Speak & Read helped children from ages four to eight develop and improve their reading comprehension and vocabulary. () Speak & Read came with a companion booklet for use with the skill activity modes included in the unit. The toy had a vocabulary of 250 words. () == Electronics == The display was a vacuum fluorescent display (VFD). Speak & Read units used 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 used a 10th-order linear predictive coding (LPC) model and the electronic DSP logic.〔History Channel, Modern Marvels: ''"70s Tech", 2007, aired 6:00-7:00pm MST〕 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. The game has been emulated in 2015 by MESS. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Speak & Read」の詳細全文を読む スポンサード リンク
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