The LM-1 Drum Computer was the first sample-based drum machine. About 500 were manufactured. The built-in samples were sampled at 28 kHz with 8 bits of resolution. There were three revisions, with revision 1 having 10 notes of polyphony, and versions two and three having 9.
Despite its limited capabilities, the LM-1 was used by many popular artists, including Gary Numan, Michael Jackson, Peter Gabriel, Stevie Wonder, and Prince (who made extensive use of the drum machine starting with the Controversy album, and used machine in combination with Boss effect pedals).