I was underwhelmed by the 'power' of the original IBM PC because I came from a BBC micro background. DOS was a bit 'meh' compared to ADFS on the BBC Micro with BASIC where you could drop down to the assembler and bang out some 6502. Who needs more than three registers anyway?

I found DOS to be incomplete and demanding where it need not be. A lot of time was wasted on config.sys and autoexec.bat with the install disks treating you as stupid.