Founded in 1978, WDC is the copyright owner and patent owner of w65c02 and w65c816 technologies. Since 1981, WDC has been a leading provider of microprocessor IP core technology, providing technology licensing, chip products and development systems for other semiconductor manufacturers and users. In the past 30 years, about 2 billion w65c02 based microcontrollers have been sold, which are used in kitchen appliances, cellular phones, automobiles, modems, audio and video equipment, medical instruments, scientific instruments, industrial robots and automatic detection equipment. Mensch, the founder of the company, is one of the inventors of the Motorola 6800 microcontroller core MOS technology 6502 microcontroller, which has been widely used by many famous companies such as apple.