OK, so the PC is 25 years old. This led me to thinking about all the PCs I've owned. Here's my timeline of major PC purchases (I've not bothered with all the numerous upgrades). Also I've only mentioned my main computer otherwise the list would go on and on...
Olivetti 8086 10Mhz, 640Kb RAM, 20Mb HDD , 3.5" FDD, 14" VGA Monitor
Evesham 486SX 25Mhz, 4Mb RAM, 100Mb HDD, 14" SVGA
Upgraded to 486DX2-66 & 8Mb RAM !!!
Scan Pentium 100, 100Mhz, 8Mb EDO RAM, 850Mb HDD, 15" SVGA
Evesham Pentium II-450, 450Mhz, 128Mb SDRAM, 10Gb HDD, 8Mb AGP, 19" CRT
Custom Build - Duron 800, OC to 1,000Mhz, 128Mb RAM, 2 x 30Gb RAID 0 HDD, 128Mb ATI 8500, 19" CRT
Custom Build - AlthonXP-1500, 256Mb, 2 x 30Gb RAID 0 HDD, 128Mb ATI 8500, 19" CRT
Custom Build - AthlonXP 2100, 512Mb, 40Gb, 128Mb ATI 9500, 1 x 19" TFT & 1 x 19" CRT
Custom Build - Pentium 4 3.0Ghz Northwood @3.4Ghz, 1.5Gb DDR, 150Gb Raptor, 128Mb nVidia 6600GT, 2 x 19" TFT
OK, I'm sure you can all do a lot better... Let's see..