Z80

Embedded systems and consumer electronics

Z80 CPUs were also used in the popular TI-8x series of graphing calculators from Texas Instruments, beginning in 1990 with the TI-81, which features a Z80 clocked at 2 MHz. Most higher-line calculators in the series, starting with the TI-82 and TI-85, clock their Z80 CPUs at 6 MHz or higher. (A few models with TI-8x names use other CPUs, such as the M68000, but the vast majority are Z80-based. On those, it is possible to run assembled or compiled user programs in the form of Z80 machine-language code.)