Bitcoin Mining the Punchcard way

Posted on May 26, 2015


Bitcoin mining on punchcards with an IBM 1401 computer.

“To mine a block at current difficulty, the IBM 1401 would take about 5×10^14 years (about 40,000 times the current age of the universe). The electricity would cost about 10^18 dollars. And you’d get 25 bitcoins worth about $6000,” he wrote. “Performance was worse than I expected.”

Nuff said.

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