Ukulawula izinombolo (futhi ukulawula izinombolo zekhompuyutha, futhi okuvame ukubizwa ngokuthi i-CNC) ukulawula okuzenzakalelayo kwamathuluzi okwenza imishini (njengama-drill, ama-lathes, izigayo namaphrinta e-3D) kusetshenziswa ikhompuyutha.Umshini we-CNC ucubungula ucezu lwento (insimbi, ipulasitiki, ukhuni, i-ceramic, noma inhlanganisela) ukuze uhlangabezane nezicaciso ngokulandela imiyalelo enekhodi futhi ngaphandle komsebenzisi olawula ngesandla olawula ngokuqondile ukusebenza komshini.