1.Katin zane (Katin Bidiyo, Katin Graphics) Cikakken sunan katin dubawar nuni, wanda kuma aka sani da adaftar nuni, shine mafi mahimmancin tsari kuma ɗayan mahimman kayan haɗin kwamfuta.
A matsayin muhimmin sashi na mai masaukin kwamfuta, katin zane na'ura ce don kwamfutar don yin jujjuya siginar dijital-zuwa-analog, kuma tana ɗaukar aikin fitarwa da nuna hotuna;
 

2.A Monitor shine na'urar I/O na kwamfuta, wato na'urar shigarwa da fitarwa.Kayan aiki ne na nuni wanda ke nuna wasu fayilolin lantarki akan allon ta hanyar takamaiman na'urar watsawa sannan kuma ta nuna shi ga idon ɗan adam.Nunin na'urar nuni ce kawai kuma baya shiga cikin sarrafa bayanai da juyawa;
 
3.The ingancin katin graphics za su kai tsaye rinjayar nuni fitarwa na duba, da kuma gazawar da graphics katin zai haifar da mummunan allo, blue allon, baki allo da kuma sauran munanan yanayi;
 
4.Katin zane yana da alaƙa da ƙuduri da lokacin amsawa na nuni;babban katin zane-zane yana sanye da babban mai saka idanu;da babban-karshen graphics katin fitar da wani in mun gwada da babban ƙuduri;
 
5. Ingancin katin zane yana rinjayar saurin, watsawa da ayyukan sarrafawa na katin zane don aiwatar da hotuna, kuma ana amfani da allon nuni kawai azaman na'urar fitarwa ta nuni.