Thos files Alan mentioned are still being used by todays operating systems right? I remember studying them, and I am supposed to know what is their job too (Windows Booting?)

I think it's time to revise "oops!!" Infact we still use those files together with others in boot disks when troubleshooting, correct me if wrong
Can you tell us what was the main function of Windows 20 years ago, was simple word processing possible for example, or was it used mainly for storing documents etc...?
