约翰·
卡马克 (John Carmack, b. 1970) is the legendary programmer behind 《
毁灭战士》 (Doom, 1993) and 《
雷神之锤》 (Quake, 1996), which pioneered real-time 3D rendering on PCs. Later CTO at Oculus VR. The word also appears in
托卡马克 (tuōkǎmǎkè) — "tokamak," the Russian-origin doughnut-shaped fusion reactor — which is a different concept entirely.