In 1978, the Sharp parts division, in charge of semiconductor sales, became one of the first second source distributor of Zilog CIE. In order to promote the LH-0080 (Sharp Z80) and associated chips, the division thought up and sold two training cards based on the LH-0080 processor and the LH-0081 PIO chip. These two cards were the SM-B-80TE and the SM-B-80TC.