Description Philips / Brother PCM 100 Composer Digital Sequencer was a very short lived product released in 1986. One of the earliest mini-workstations the unit combined a 2-OP FM synthesizer that is said to sound much like the Yamaha Porta series home / toys keyboards.

The unit features a 2 octave touch keyboard with what is said to be a powerful real-time / step sequencer with 8K RAM for recording. The unit featured a large LCD screen for for composing and entering the note data that could play any one of the 100 on-board FM sounds.

While the synthesizer was monophonic, there were three additional parts to accompany with bass line, chords and any of 15 different rhythmic patterns. What is very different from most sequencers, is the PCM 100 had a built-in cassette recording for storing and loading the composed song sequences.
Architecture Type: Digital Synthesis: Frequency Modulation Oscillators Oscillators: 2 Waveforms: Sine ROM Size: 32 kb Osc Modulation: Envelope, Oscillator, Sequencer Oscillator Notes:
+ 2-OP FM Snythesizer Envelopes Envelopes: 1 LFO LFO: 1 Polyphony & Tuning Polyphony: 4 Timbrality: 4 Tuning: Standard Modes: Polyphonic Patches Patches RAM: 100 Storage: Internal, 6 Percussion + 15 rhythm patterns Sequencer + 8 kb RAM Chips and Operating System Yamaha OPL YM3526 chip. Case Case: Desktop Keyboard: 25 keys, Touch Plates, Plastic Controls: Buttons Display Type: LCD, LED Dimensions (WxDxH): 220 x 190 x 40 mm Weight: 715 grams Connections Audio Output Connections: 1/4" Phone Jack, Stereo Main Audio Output Count: 2 Power: 9V DC 500 mA Production Year Released: 1986 Year Discontinued: 1988 Design Notes:

Designed by Lindsey Williams