Na January 1981, MOS Technology, Inc., Commodore si integrated circuit imewe enyemaka, malitere a oru ngo chepụta ndịna-emeputa na ọdịyo ibe maka a ọzọ ọgbọ video egwuregwu console. Design ọrụ maka ibe, aha ya bụ MOS Technology VIC-II (Video Integrated Circuit maka ndịna-emeputa) na MOS Technology SID (Sound Interface Ngwaọrụ maka ọdịyo), e dechara na November 1981. Commodore mgbe ahụ malitere a egwuregwu console oru ngo nke ga-eji ọhụrụ ibe <unk>akpọ Ultimax ma ọ bụ Commodore Machine MAX, engineered site Yash Termodore si Commodore Japan. Nke a oru ngo e mechara kagbuo mgbe dị nnọọ ole na ole ígwè ọrụ e mepụtara maka Japanese ahịa. N'otu oge ahụ, "Bob" Russell (usoro na ụkpụrụ ụlọ na VIC-20) na "Robert" Yannes (onye nduzi nke SID) malitere a oru ngo chepụta ndịna-emeputa ibe, aha ya bụ MOS Technology VIC-II (Video Integrated Circuit maka ndịna-emeputa) na MOS Technology SID (Sound Interface Ngwaọrụ maka ọdịyo), nke a
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