Cryptocurrency mining is painstaking, costly, and only sporadically rewarding. Nonetheless, mining has a magnetic appeal for many investors interested in cryptocurrency because of the fact that miners are rewarded for their work with crypto tokens. This may be because entrepreneurial types see mining as pennies from heaven, like California gold prospectors in 1849. And if you are technologically inclined, why not do it? And you can now use your Commodore C64 computer for Bitcoin mining, thanks to a program developed by YTM. However, minning Bitcoins with the Commodore C64 is not really rewarding, because A C64 would need 337 years and 10 months to reach 1 bitcoin. C64 Bitcoin miner can run in demo mode or communicate with ngbtminer for C64 over serial link (1200 baud, 8N1) to access Bitcoin blockchain.