J2Games.com - Before we had the Sega Tower of Power we had the Intellivision.... what would you call this? Intellivision + Intellivision Computer + Intellivoice and game cart. I wonder if it
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Intellivision 2 II Console, Computer Adaptor & Keyboard, Intellivoice, 22 Games | eBay
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Intellivision: Gone But Not Forgotten | TechSpot
Computer Module | Mattel Intellivision
Mattel Intellivision: Intellivision Computer Module Owner's Guide (1983)(Mattel)(US) : Free Download, Borrow, and Streaming : Internet Archive