I have a computer which will not used, however, it is about 4-5 years old already,
is it worth to use it to mine BTC?
If yes, how much will I expect to get in 1 month
using your old computer to directly mine bitcoin is a hard thing to do. But you can still mining bitcoin but not directly to mine bitcoin but use your old computer to POS mining or staking for altcoin. Search for the profitable POS coin such as Diamond, Hyperstake etc, and then you sell your staking coin to bitcoinis it worth to use it to mine BTC?
If yes, how much will I expect to get in 1 month