Generates noise according to some platform-specific parameters
Implemented by: cbmv7, cbmv3.5, Simons1, Atari, msatari, trscolor, BBC, GWBASIC, MSX, ABasiC, QBasic, VBDOS
With variations: TI994 (through CALL), colormc, ugBASIC (frequency, duration, channels; also with OFF), minibasicjs
Also written as: