clksignal: clksignal (emulator for various classic computing platforms) clksignal: clksignal: CLK, also known as Clock Signal, is an emulator for tourists that clksignal: seeks to be invisible. Users directly launch classic software with no clksignal: emulator or per-emulated-machine learning curve. clksignal: clksignal: It currently emulates the Acorn Electron, Amstrad CPC, Amiga, Apple clksignal: II/II+/IIe, Atari 2600, Atari ST, ColecoVision, Commodore VIC-20, clksignal: Enterprise 64/128, 512K Mac/Mac+, MSX-1, Oric/Atmos, Sega Master clksignal: System, Sinclair ZX81/81, and Sinclair ZX Spectrum. clksignal: