U-C woku-programa ulwimi loku-lulwimi loku-progama ikhompyutha olwenzelwa ukuba lwenze inkqubo yoku-programa i-operating system UNIX kwaye ilulwimi lwe-imperative programming. U-C weenziwa ekuqaleni komnyaka ka-1970 ngu-Ken Thompson no-Dennis Ritchie. Ilulwimi olu-Ilulwimi olu-procedural, into ethetha okokuba abantu bangazibhala ii-programs zabo njengothotho lwemiyalelo ngokulandelelana kwayo. U-C lulwimi olu-compiled.