CP/M was a popular operating system until the introduction of DOS in 1981. The last CP/M version was released in 1983. It uses *COM files and although MS-DOS also runs *COM files the formats are not compatible.
Saper (2021)
CP/M was a popular operating system until the introduction of DOS in 1981. The last CP/M version was released in 1983. It uses *COM files and although MS-DOS also runs *COM files the formats are not compatible.