CLK

Clock Signal ('CLK') is an emulator that seeks to be invisible. Users directly launch classic software, avoiding the learning curves associated with emulators and with classic machines.

macOS and source releases are hosted on GitHub. A Qt-based Linux build is available as a Snap.

This emulator seeks to offer:

• single-click load of any piece of source media for any supported platform; • with a heavy signal processing tilt for accurate reproduction of original outputs; • avoiding latency as much as possible.

It currently contains emulations of the:

• Acorn Electron; • Amstrad CPC; • Apple II/II+ and IIe; • Atari 2600; • Atari ST; • BBC Micro; • ColecoVision; • Commodore Vic-20; • Enterprise 64/128; • Macintosh 128K, 512K, 512Ke, and Plus; • MSX 1 and 2; • Oric 1/Atmos; • Sega Master System; • Sinclair ZX80/81; and • Sinclair ZX Spectrum.

Also present but very much upcoming are the:

• Acorn Archimedes; • Commodore Plus 4; • Commodore Amiga; and • early PC compatible.

On the Mac it is a native Cocoa and Metal application; under Linux, BSD and other UNIXes and UNIX-alikes it uses OpenGL and can be built either with Qt or with SDL.