Issuers tack it on so that the whole card number will satisfy a specific mathematical test—the Luhn algorithm. Here’s how the algorithm works: Write out all but the last digit of the card number.

To build a large-scale quantum computer that works, scientists and engineers need to overcome the spontaneous errors that quantum bits, or qubits, create as they operate.

Ada Lovelace, daughter of the famous poet Lord Byron, is considered the world's first computer programmer.

I have weekly meetings with my supervisor, not just discussing the research but also how I'm feeling mentally and what I am doing to prepare myself for the future. It’s an all-round package of making ...

Quantum Computer Research. Read the latest news in developing quantum computers.

An investment is an asset, such as a stock or property, purchased to generate income or appreciate in value.