Kinda like a cruise show for carz but for your PC.
1. List approx month and/or year of purchase
2. List the make (model if known)
3. List your original specs if known (and the original purchase price)
4. Whatever upgrades you have added (cost of upgrade) OR keep it simple and just list your current specs.
5. Any hardware failures/breakdowns.
6. If you like post a pic of your PC, maybe even one of "whats under the hood" if you got time.