Beginners guide: Practical Quantum Computing with IBM Qiskit. This course is a complete guide to learning and understanding general quantum computing based on the IBM Qiskit documentation. Our current classical computing technology is based on bits or binary digits 1 and 0. 1 for on and 0 for off. Although it has two states, a bit can only exist in one state at a time. Just like a coin has two sides: heads or tails. Note: In classical computers, a programmer can simply write high-level code and run it. But for quantum computers, we have to design circuits to perform specific tasks. The concept of quantum computing is completely different from classical computing. It uses the quantum mechanical properties of subatomic particles such as electrons to perform calculations. Instead of 1 and 0, a qubit or quantum bit uses the “up” and “down” spin positions of electrons. But unlike bits, qubits can exist in both states at the same time. Like a coin that keeps spinning, it can be said to have an equal chance of either coming up heads or tails. Or it can be both heads and tails. As the number of qubits increases, this speed increases exponentially over classical computers. Computations such as data analysis and artificial intelligence, which require massive parallel processing power, can now perform calculations in milliseconds that would now take years to complete.
