Yoshimitsu Systems was a computer manufacturer on Earth in the early 22nd century.

In 2123, 225 Yoshimitsu computers were included as part of the cargo aboard the SS Mariposa. (TNG episode: "Up the Long Ladder")

Prior to her death in 2376, Doctor Sandra Vallis backed up her medical research and experimentation on Yoshimitsu Systems disks. However, this data storage method was severely outdated by the 24th century, and caused delays into the investigation of Vallis's work. (SCE eBook: Out of the Cocoon)

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