Duba wurin da ke ƙasa sannan ka amsa tambayar daga baya a cikin harshe ɗaya kamar yadda wurin yake:  Passage: A watan Janairun 1981, MOS Technology, Inc., Commodore na haɗin haɗin keɓaɓɓen haɗin keɓaɓɓu, ya fara aikin don tsara zane-zane da kwakwalwan kwamfuta don wasan bidiyo na gaba. An kammala aikin ƙira don kwakwalwan kwamfuta, mai suna MOS Technology VIC-II (Video Integrated Circuit for graphics) da MOS Technology SID (Sound Interface Device for audio), a watan Nuwamba 1981. Daga nan Commodore ya fara aikin wasan bidiyo wanda zai yi amfani da sabbin kwakwalwan kwamfuta da ake kira Ultimax ko Commodore MAX Machine, wanda Yash Terakura ya kirkira daga Commodore Japan. Wannan aikin an soke shi a ƙarshe bayan an ƙera injina kaɗan don kasuwar Japan. A lokaci guda, Robert "Bob" Russell (mai tsara shirye-shiryen tsarin da kuma gine-ginen VIC-20) da Robert "Bob" Yannes (injiniya na SID) sun kasance masu sukar layin samfuran yanzu a Commodore, wanda shine ci gaba da layin Commodore PET da aka yi niyya ga masu amfani da kasuwanci. Tare da goyon bayan Al Charpentier (injiniya na VIC-II) da Charles Winterble (manajan MOS Technology), sun ba da shawara ga Shugaba na Commodore Jack Tramiel wani abin da ya dace da VIC-20. Tramiel ya faɗi cewa injin ɗin ya kamata ya sami 64 KB na ƙwaƙwalwar ajiyar bazuwar (RAM). Kodayake kwakwalwan ƙwaƙwalwar ajiya na bazuwar 64-Kbit (DRAM) sun kashe sama da US $ 100 (daidai da $ 232.95 a cikin 2018) a lokacin, ya san cewa farashin DRAM yana raguwa, kuma zai sauka zuwa matakin da za a iya yarda da shi kafin a kai ga cikakken samarwa. Teamungiyar ta sami damar tsara kwamfutar cikin sauri saboda, ba kamar yawancin kamfanonin komputa na gida ba, Commodore yana da masana'antar kera semiconductor don samar da kwakwalwan gwaji; saboda masana'antar ba ta aiki da cikakken ƙarfi, farashin ci gaba wani ɓangare ne na haɗin gwiwar kamfanoni na yanzu. An kammala kwakwalwan ne a watan Nuwamba, a wannan lokacin Charpentier, Winterble, da Tramiel sun yanke shawarar ci gaba da sabon kwamfutar; na biyun ya sanya wa'adin ƙarshe don ƙarshen makon farko na Janairu, don daidaitawa da Nunin Kayan Lantarki na Masu Amfani (CES) na 1982. An sanya wa samfurin suna VIC-40 a matsayin magajin mashahurin VIC-20. A cikin...  Tambaya: Mene ne RAM yake nufi?
ƙwaƙwalwar ajiya ta bazuwar