Computers - Programming Quantum

: The most popular open-source SDK. It uses Python to build and run quantum circuits on real IBM hardware.

: The basic unit. Unlike bits (0 or 1), a qubit exists in superposition , a state of being both 0 and 1 until measured. Programming Quantum Computers

You don't just "calculate" on a quantum computer; you apply mathematical shortcuts that classical computers can't replicate: Programming Your Quantum Computer - American Scientist : The most popular open-source SDK