Also generally known as LFSRs (Linear Feedback Shift Registers): https://en.wikipedia.org/wiki/Linear-feedback_shift_register https://en.wikipedia.org/wiki/Line

Also generally known as LFSRs (Linear Feedback Shift Registers): https://en.wikipedia.org/wiki/Linear-feedback_shift_register https://en.wikipedia.org/wiki/Linear-feedback_shift_register. One advantange is that they can be easily implemented in hardware (and then very cheaply implemented in emulators). For instance the noise generators in audio chips of 80s home computers were typically an LFSR with around 16 bits of state.