Benefits of Quantum Computing. Among the main advantages is speedup, enabling quantum computers to solve certain problems faster, in some cases exponentially, than classical computers. This is particularly useful for such tasks as factoring large numbers, simulating complex quantum systems, database search, and optimizing complex problems. Arguably the most famous example of an exponential speedup by a quantum algorithm over a classical algorithm is provided by the Harrow-Hassidim-Lloyd algorithm for solving a system of linear equations. It is expected that quantum computing will lead to the development of entirely new technologies and applications that are impossible with classical computers. Risks of Quantum Computing. Building quantum computers is challenging due to the delicate nature of quantum states. Maintaining quantum states long enough for meaningful computation is a significant technical challenge. Quantum systems are susceptible to their environment, leading to issues like decoherence, where qubits lose their quantum state. Error correction requires additional qubits, which complicates building scalable quantum systems. The development of quantum computers requires advanced materials, extremely low temperatures, and sophisticated technology for qubit control and error correction. Energy consumption is an essential factor to consider when selecting classical versus quantum computing for specific computational tasks.