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
is it worth to use it to mine BTC?
If yes, how much will I expect to get in 1 month
Nope, not worth it. You'll get maybe 0.0001 but you can't withdraw it because most minimum withdraws are around 0.01.