ASIC miners

In plain words

An ASIC miner is the whole mining machine: boards of mining chips, a big power supply, and fans that never stop. A modern one draws as much power as a few space heaters running around the clock, and roars like a vacuum cleaner. This is factory equipment, not living-room gear. Home mining still happens — usually where electricity is cheap, or where the heat is useful.

Why it matters

• The physical layer of Bitcoin's security — someone, somewhere, runs these.
• Electricity price decides everything; the hardware is secondary.
• New chips retire old machines within a few years — the treadmill is brutal.

Not to be confused with

• Node hardware — checking Bitcoin takes a quiet mini-PC, not one of these.

Go deeper

• ASIC
• The energy debate
• Node hardware