In a quantum computer, the basic unit of memory is a quantum bit or qubit. Qubits are made using physical systems, such as the spin of an electron or the orientation of a photon.

Quantum computers need classical computing to be truly useful Conventional computing devices will play a crucial role in turning quantum computers into tools with real-world application Analysis

Quantum computers: The world's first buyers' guide With the first quantum computer already on the market, and more in the offing, should you splash the cash?

Oct 24, 2023 · The world’s first quantum computer to exceed 1000 qubits has more than double that of the previous record holder, IBM’s Osprey machine, which has 433 qubits. Though having more …

Nov 21, 2025 · A vital ingredient for making quantum computers truly useful just might be conventional computers. That was the message from a gathering of researchers this month, which explained that …

Mar 10, 2025 · Researchers have criticised Microsoft's new Majorana 1 quantum computer, saying the company has made claims about the way it works that aren't fully backed up by scientific evidence

Sep 18, 2025 · For all the hype surrounding quantum computers, the technology can sometimes appear to be a solution in search of a problem. Scientifically impressive, but not yet obviously useful in the …

Jul 4, 2025 · A quantum computer and conventional supercomputer that work together could become an invaluable tool for understanding chemicals. A collaboration between IBM and the Japanese …

Aug 22, 2025 · A quantum computer may have reached “quantum advantage” by carrying out a task that is firmly out of the reach of the world’s best supercomputers. Experts have estimated replicating the ...

Jul 14, 2021 · Google has shown that its Sycamore quantum computer can detect and fix computational errors, an essential step for large-scale quantum computing, but its current system generates more …