The original 1977 Apple II had a MOS Technology 6502 microprocessor running at 1 MHz.

Entral processing unit (CPU) called MOS Technology 6502, an 8-bit microprocessor

RAM) chip, and the MOS Technology 6502 processor read the program information via an input/output (I/O) chip. Logistics aside, what made this the ideal solution was the low cost of the ROM Cartridges, and with Cyan's self-developed Television IEntral processing unit (CPU) called MOS Technology 6502, an 8-bit microprocessor

RAM) chip, and the MOS Technology 6502 processor read the program information via an input/output (I/O) chip. Logistics aside, what made this the ideal solution was the low cost of the ROM Cartridges, and with Cyan's self-developed Television Interface Adaptor (TIA) sound chip, both graphic and sound solutions were complete

nterface Adaptor (TIA) sound chip, both graphic and sound solutions were complete

8 bit microprocessors

• Commodore Computers for their PET PC (Based on a MOS 6502 CPU),
• Tandy for their TRS-80 PC (Intially based on a Zilog Z80 CPU), and
• Apple for the Apple II PCs (MOS 6502 CPU).

MOS Technology was created in 1969.