Maetryx here,
My IBM M2 keyboard on my main machine was made in 1994. I absolutely love it. It has a PS/2 connector, a really thin cable like a phone cord, and NO Windows keys. I've got another one just like it in reserve in case this one ever dies.
I just got a brand new KVM switch, which totally changed my outlook on life this weekend. I went through a TON of old parts and built a couple systems out of them.
#1) K6-2 550 on a FIC VA-503+ 1.2a AT (not ATX) mainboard. 500MB HDD. 36X ASUS CD-ROM. 96MB RAM. Cirrus Logic PCI video (?). VooDoo2. LinkSys 10/100 NIC. 33.6 modem. Newish keyboard. Older mouse. No monitor. It's not a bad system but the hard drive situation is pretty tight. There's like less than 100MB free after putting on Windows 98SE and a couple essentials.
#2) K6-2 400 on a P5SS (maybe manufactured by ECS) micro ATX mainboard in a jacked micro-mini ATX case. The plastic front piece is gone from the case. Built in sound and video. The video hijacks 4MB from the system RAM, which otherwise would be 64MB. The ISA slot has a vintage IN-2000 SCSI-1 card in it. I got this baby in 1993 I think. It's connected to a Rancho Technology single to differential SCSI converter board. Finally, the converter board is connected to a 1.5GB Micropolis SCSI-1 HDD that I am pretty sure was manufactured in 1987. Micropolis had a 7 year warranty back then, and I think I got the drive before the warranty expired. I may be wrong about the years. I know I got it in 1992 or 1993. It was used. It cost me $1100, which was less than $1/MB so it was a real steal. Anyway, the damn thing still works. It's got DOS 6.22 and WFW 3.11 still on it. Don't have a floppy or a CD-ROM in that jacked case yet. The HDD is a 5-1/4" FH form factor (Full Height) so it takes up BOTH of the available 5-1/4" drive bays.
So, yeah. That big-ass Micropolis HDD (I think it's model 1528) is my very oldest, still operational piece of hardware. But its not in my main system. It's in my fifth system.