Because DOS is a stolen illegal copy of CP/M, but with a few features removed. And yes CP/M was way better, and had for instance multitasking way before MS-DOS. And it had filesystem safety, the lack of which caused decades of security nightmares on PC.
Because DOS is a stolen illegal copy of CP/M, but with a few features removed. And yes CP/M was way better, and had for instance multitasking way before MS-DOS. And it had filesystem safety, the lack of which caused decades of security nightmares on PC.