Happy 15th, Windows 95!
Yes, 15 years ago I was in my university dorm ogling a friend's just-purchased copy of the 95 Upgrade, wondering how awesome my DX2/66 would be once I had replaced my factory-original Windows 3.11. Similarly fond-but-geeky memories of playing Doom deathmatches over our null modem cable also come rushing back...
It's actually pretty impressive (or depressing, perhaps?) that the Windows interface introduced in 95 remained pretty much the same all the way up until the release of Vista. Windows 95 also marked a big leap forward for PCs as a gaming platform, heralded the introduction of USB support, and also spawned a generation of BSOD-related headaches.
Ahh, memories! Share your Windows 95-related ones in the comments!
[Seb's note: I just checked the Doom Wiki page, and this is what it says: "In late 1995, Doom was estimated to be installed on more computers worldwide than Microsoft's new operating system Windows 95, despite million-dollar advertising" campaigns for the latter."]