Tom's Hardware on MSN

Microsoft’s pivotal Windows NT 3.5 release made it a serious contender, 31 years ago today

We cast a glance back at Windows' forebears, as it was 31 years ago today that Windows NT 3.5 released to the public.
XDA Developers on MSN

Windows lives on the C: drive, and the reason it's not called A: or B: goes back to the 1970s

In the era of floppy disks and early operating systems like CP/M and MS-DOS, A: and B: were reserved for floppy disk drives, ...