According to the use can be divided into television. Audio, DVD player, video recorder, computer (microcomputer), electronic organ, communication, camera, remote control, language, alarm and various special purposes.

TV use includes line, field scanning, medium playback, sound, color decoding, AV/TV conversion, switching power supply, remote control, beautiful voice decoding, picture in picture processing, microprocessor (CPU), memory, etc.

Audio includes AM/FM high IF circuit, stereo decoding circuit, audio pre-amplification circuit, audio operation amplification, audio power amplification, surround sound processing, level drive, electronic volume control, delay reverb, electronic switch, etc.

DVD player with system control, video coding, MPEG decoding, audio signal processing, sound effects, RF signal processing, digital signal processing, servo, motor drive, etc.

VCR has system control, servo, drive, audio processing, video processing.