Yes, you heard that right. P-ATA. The one that came before S-ATA (which came before SSD).
As you can see from the 7000 hour Power-On Count it was my Windows drive in my 10 year old computer. 45000 Power-On Hours is well above average use. You're tempting fate if you don't start backing up your data at this point.
For about 6 months, the HDD started feeling slow and then one day it would read/write 20 seconds, then become inactive/freeze for 20 seconds, and then active again and repeat. So I used that opportunity to back up some stuff and reinstalled Windows to an S-ATA drive. My computer's motherboard has both P-ATA and S-ATA ports. No SSD because it's too old to support it. After formatting the 120GB P-ATA HDD, it still seems usable. I won't be using it again as a system drive though. What things can still support a P-ATA?
As an OzBargainer, I find it laughable to hear people recommend 2 year old computers saying "this should be good enough for your grandma's needs like word processing and looking up cooking recipes." Mate. My 2007 computer is still perfectly usable in 2017 for that plus more. It can even play games! Albeit not at max settings.
Upgrading your computer parts for non-gaming reasons is a mug's game like smartphones. The average person doesn't need to upgrade. Keep using whatever you have until it breaks, whether it's computers, phones, or washing machines. The only computer component that needs to be replaced is the system drive. Your HDD will die before your CPU or graphics card or motherboard does so backup your stuff, install a new HDD, and you can get another 5 years out of your computer.
This post goes on so many tangents it reminds me of Abe Simpson and his onion belt story
https://www.youtube.com/watch?v=5Rzao52ndNA