Ko ngā mīhini Rautaki Tau (NC) te hangarau takotoranga i whakaputangia ai te whakawhanaketanga o te whakauru aunoa ki te mahi mīhini, ka huri noa i te tāpoi. Ko ēnei pūnaha tuatahi, i hangaia i mua i te wehenga o ngā rorohiko kēmu, i whakamōhiotia e tētahi atamira me te tape kua ruarua hei penapena, ka pānui hoki i ngā tohutohu mīhini. Ko te whakaritenga mō tētahi mīhini NC he tūhura o ngā raraunga whārite-pana (G-codes and M-codes) e whakarārangi ana i ngā nekenga tūtohu o ngā axis, ngā tere puipui, me ngā mātai tāpuhi pērā i te whakahaere waimā. I te wehenga mai i ōna kaitoi, ngā mīhini Rautaki Tau Kōmipiuta (CNC), kāore ngā pūnaha NC tuku iho i tētahi rorohiko roto; ko te kaitōmai he pūnaha kirihou-mātai, he taputapu motuhake e kore e taea te penapena i ngā kaupapa rorohiko roto, e kore pea e taea te whakahou mō te kore e hangaia he tape hou. I whakauru tēnei āhuatanga matua ētahi here here, pērā i te māmā o te tape pepa ki te wareware, e taea ai te hapa pānui, me ngā tautohe hoki o te whakangao, me te uaua nui ki te whakarerekē i ngā wāhi, ahakoa iti noa. Me mahi tātari e ngā kairaranga he wāhanga hou o te tape mō ia panonitanga kaupapa, ahakoa iti. Ahakoa ēnei here, ko te whakauru o te hangarau NC he haerenga nui aipurangi, e taea ai te hanga i ngā wāhanga pīroiro me te tūponotanga, me te tika e kore e taea mua mā ngā tikanga katoa. I whakaritea ai mō te hanga i ngā wāhanga pīroiro mō ngā umanga rererangi me ngā umanga tiaki. He mea nui te mārama ki te whanaketanga mai i NC ki CNC kia mārama ai ki te rerekētanga o te hangarau anuanu; i te wā NC i whakaturia ai te kaupapa matua o te whakamahinga rorohiko i ngā tohutohu mīhini, ā, i te wā CNC, me ōna microprocessor me ōna software, i whanaketia ake tēnei kaupapa ki te tārairopi, ki ngā atamira whakaatu, ki te tukutuku inaianei, me te whakahaere algorithmic pīroiro, ā, i aronga ai ki ngā pūnaha aunoa anuanu, maroke, ā, āhua anuanu e tohu ana i te inžinieri anuanu o nāianei.
Kua rite kē te kapa hokohoko mātua ki te āwhina i a koe.