What is Bitcoin Mining Hardware??
Bitcoin mining hardware (ASICs) are high specialized computers used to mine bitcoins.
The ASIC industry has become complex and competitive.
Mining hardware is now only located where there is cheap electricity.
When Satoshi released Bitcoin, he intended it to be mined on computer CPUs.
Enterprising coders soon discovered they could get more hashing power from graphic cards and wrote mining software to allow this.
GPUs were surpassed in turn by ASICs (Application Specific Integrated Circuits).
Nowadays all serious Bitcoin mining is performed on ASICs, usually in thermally-regulated data-centres with access to low-cost electricity.
Economies of scale have thus led to the concentration of mining power into fewer hands than originally intended.