BFGminer

BFGMiner is a modular ASIC/FPGA miner written in C, featuring dynamic clocking, monitoring, and remote interface capabilities. Bitcoin miner software with multi-threaded multi-pool gpu, fpga and asic mining support.

Bitcoins are a digital currency, exchanged freely against all other currencies. coins may be issued by everyone, one just needs considerable computer power - and luck. to even out rewards for one's contribution, many initiative have forms to provide pools of computers and share the load.