Bitcoin is the first ever cryptocurrency that an entire industry was built from since, and anything that isn't BTC is considered an altcoin.
Bitcoin ແມ່ນ cryptocurrency ທໍາ ອິດທີ່ອຸດສາຫະ ກໍາ ທັງ ຫມົດ ຖືກສ້າງຂຶ້ນຕັ້ງແຕ່ນັ້ນມາ, ແລະສິ່ງທີ່ບໍ່ແມ່ນ BTC ຖືວ່າເປັນ altcoin.