Coins for slow/old/discontinued computers

[mockant]

Hi! First post here!:)

I was wondering,
Could it be possible to create a coin that would only be mineable by old computers or old OS?
For example you could only mine that coin with an old Powerbook 100 or with Windows 98

 

It would be a good way to re-use/recycle old stuff!!

[Vann]

Using an antiquated single-core CPU system to mine would be a waste of electricity, especially since older systems are not powerful enough or as energy efficient compared to newer ones. Perhaps the best mining related use for a system as old as you describe would be to install Linux on it and use it as a wallet server.

[STT]

I mine coins with old laptops.  win98 is super duper old though, lol   how is that still working :O

Yes those coins exist, you should look at proof of stake or pos.   This is where you can have a part in the network by hosting the wallet on your machine.   Mostly its relying on your connection but also your existing capital to tie into the value of the network.    Proof of work will generally leave you behind as there are vast resources invented since 1998, I dont see how you could compete but many people have a decent connection and distributed network makes sense to value that and not discriminate. 
 
I think it was pointed out that POW from BTC mostly originates its blocks from just 100 points on the internet.   That seems a bit of vulnerability so a network which takes the opposite view is fair game, try energy coin which I think is still giving some coins out or you can try blackcoin where you would have to buy some and later you will gain some interest, even on an old machine.
   I forget its name now but one coin was suggesting people play a game to win coins (form blocks of work even), just some basic motorcycle 2D game.  Literally fair game :p