Editing Sega CD (section)

===Development===
Soon after the [[Sega Mega Drive]] was launched in 1988, [[Sega]] began creating a CD-ROM add-on. In addition to relatively short loading times, it was planned to implement features similar to that of Sega's arcade systems.

The Mega Drive's processor was too slow to handle the Sega CD's new graphical capabilities, and thus an additional CPU was incorporated into the add-on. This second CPU was clocked at a speed of 12.5MHz, faster than the regular 7.67MHz CPU in the Mega Drive. The Sega CD's RAM access speed was initially too slow to run programs effectively, and the developers had to focus on increasing the speed. [[Sega/Sega of America|Sega of America]] was not informed of the project details until mid-1991, being given just preliminary technical documents earlier in the year. The American staff were frustrated by the Sega CD's construction, with games requiring more data than the CD drive was designed to provide.