This is not correct. The actual name is the "Sega Master System." It says it right on the console, on every iteration of the console ever sold. There are no consoles that just say "Sega Base System" or "Segascope 3D System" they just say Sega Master System Power Base on them.
Even the Sears Wishbook sold it as the Sega Master System.
except for the Mark III, which was the original master system
as far as SSD's intel and sharp did have bubble memory in a few machines of the mid 80's (like most of the early model GRiD laptops used it as non volatile storage)
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