description: "1970s were the age in which microcomputers evolved. This decade saw the rise of many historic operating systems including Unix, Alto OS, Apple DOS and CP/M."
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# 1970s
![Alto OS Neptune File Manager from 1970s](./1970s.webp)
1970s were the age in which microcomputers evolved, but the majority of operating systems we are going to cover are still minicomputer ones. This decade saw the rise of many historic operating systems including Unix, Alto OS (pictured above), Apple DOS and CP/M.