And was allegedly plagiarized from QDOS. https://forwardthinking.pcmag.com/software/286148-the-rise-of-dos-how-microsoft-got-the-ibm-pc-os-contract https://for

And was allegedly plagiarized from QDOS. https://forwardthinking.pcmag.com/software/286148-the-rise-of-dos-how-microsoft-got-the-ibm-pc-os-contract https://forwardthinking.pcmag.com/software/286148-the-rise-o...