Quantum computing is fascinating because it uses rules that are very different from everyday intuition. Classical computers use bits, while quantum computers use qubits.
A short history
At the beginning of the twentieth century, physicists realized that classical physics could not explain everything about light, atoms and electrons. Quantum mechanics introduced probability, measurement and superposition.
What is a qubit?
A bit is 0 or 1. A qubit can represent a combination of possibilities until it is measured. This is not magic: it is a different way to represent some problems.
Try it online
You can explore the topic online with IBM Quantum Platform and the open source SDK Qiskit. If you want to run Python in the browser, Google Colab is a good starting point.
Keywords: quantum computer, qubit, Qiskit, Python, IBM Quantum, Colab.