what games were generally played on that device?
FMV video games.
Sega CD
his benefit manifested as full motion video (FMV) games such as the controversial "Night Trap", which became a focus of the 1993 congressional hearings on issues of video game violence and rating
what is 'sega cd'? A  CD-ROM accessory for the Mega Drive/Genesis . which company manufactured them? Sega. name a few electronic parts of this product. The CPU is a Motorola 68000 processor,a Backup RAM cartridge, RCA pin jacks, etc. when was this product first time sold in the market? It was released in Japan on December 12, 1991. what are the different models of this product? Two preivious models developed by Sega , and the Genesis CDX,  X'Eye,  Wondermega and others. can any random music cd be played on that device? It can play CD-based games, audio CDs and CD+G discs.
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Sega CD [SEP] Introduction
This benefit manifested as full motion video (FMV) games such as the controversial "Night Trap", which became a focus of the 1993 congressional hearings on issues of video game violence and ratings. Sega of Japan partnered with JVC to design the Sega CD and refused to consult with Sega of America until the project was complete. Sega of America assembled parts from various "dummy" units to obtain a working prototype. It was redesigned several times by Sega and licensed third-party developers. While the Sega CD became known for several well received games such as "Sonic CD" and "", its game library contained many Genesis ports and poorly received FMV games.