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Re:CP/NC – a CP/M-compatible operating system by zabzonk on Tuesday December 17, 2019 @04:36PM (#21819151)
This is true for MS-DOS 1.0, but 2.0 introduced tree-structured directories, which 8-bit CP/M didn't have.
Re:CP/NC – a CP/M-compatible operating system by p_l on Wednesday December 18, 2019 @04:48AM (#21823324)
2.0 was also the "breakout" version of MS-DOS that made it win over CP/M.

It did it by introducing features inspired by another Microsoft OS, the Unix for 8080 known as Xenix: - tree structured directories - pipes - output redirection - DEV directory (mostly hidden as it didn't catch on, afaik)