Kulomcimbi sizozinikela ekukhulumeni ngomlando we Izinhlelo zokusebenza ze-Mac OS. Uhlobo lokuqala lwe Mac OSIsistimu 1 ibinedeskithophu, amawindi, izithonjana, igundane, amamenyu, nama-scrollbar. Njalo lapho ikhompyutha iqalwa kabusha, yonke imininingwane iyanyamalala. Ngaphezu kwalokho, bekungeke kwenzeke ukusebenza ezinhlelweni ezimbili ngasikhathi sinye ngoba bekungekho imemori ebonakalayo. Kwakungenakwenzeka ukudala ifolda ngaphakathi kwenye ifolda, ngoba wonke amafayela ayegcinwa ngendlela efanayo kudiski.
Ngo-1988 kuphela, ngeSystem 6, kwengezwa imibala. Inkinobho yengezwe kunketho ye- "Erase Disk" ukuze ukwazi ukukhansela lesi senzo, inketho yokubonisa inombolo yenguqulo yefayela nayo ingeziwe.
Eminyakeni emibili kamuva ngo-1990, iSystem 7 yayisho ushintsho olukhulu lwesoftware ngalesi sikhathi, njengoba inkumbulo yathuthukisa amandla ayo aya kuma-32b, avumela ama-Macs ukuthi asebenzise ngaphezu kuka-8 MB weRam, ohlelweni lokusebenza.
Uhlobo lweshumi nolokugcina lohlelo lokusebenza lwe-Apple yi- I-Mac OS X, eyakhishwa ngo-2002. Kuyafaneleka ukusho ukuthi lolu hlelo lokusebenza lususelwa ku-UNIX. Kubalulekile ukuqaphela ukuthi le nguqulo yethule imisebenzi emisha eyahlukahlukene yokunikeza abasebenzisi bayo ipulatifomu esebenza kangcono futhi ezinzile kunenguqulo yangaphambilini (Mac OS 9). Phakathi kwabo singabala imemori yokuvimbela ukwenza izinto eziningi nokuvikela imemori, ngokungangabazeki okwakuthuthukisa ikhono lohlelo lokusebenzisa izinhlelo ezahlukahlukene ngasikhathi sinye.