Quantum computing is a revolutionary new form of computing that is based on the principles of quantum mechanics. The fundamental difference between classical computing and quantum computing is that classical computing is based on bits which are either 0 or 1 whereas quantum computing is based on quantum bits, or qubits, which can be in multiple states simultaneously. This makes quantum computing incredibly powerful and efficient, but also incredibly difficult to understand and implement. This is due to the fact that quantum computing relies on complex mathematical equations and algorithms to work, and it requires a deep understanding of quantum mechanics and physics. Additionally, developing a quantum computer requires specialised hardware that is expensive and difficult to build. This makes quantum computing a difficult and complex field of research, but also a highly rewarding one.