At the Eden Project there is a sculpture which depicts the e-hardware an average Jo will use and dispose of in a lifetime (those teeth are made up of computer mouse). Overall this amounts to 3.3 tonnes.
I've listed this before on W2tQ, but my micro - PC footprint runs as follows:
- Sinclair ZX81 - 1981
- BBC microcomputer model 'B'
- BBC Master 128 - 1986
- Elonex 286 PC
- Dell 486 PC
- MacBook Pro - October 2008
- Evesham Pentium 4 PC - November 2002