<human>:  What is a quantum computer?
<bot>: A quantum computer is a form of technology that takes advantage of quantum mechanical phenomena to perform calculations and operations. It uses the properties of quantum mechanics, such as superposition and entanglement, to process information. This new form of computing could potentially solve highly complex problems in a fraction of the time it would take a classical computer. Compared to classical computers, quantum computers offer far greater processing power and the ability to solve problems that would otherwise be unsolvable.