Microsoft has unveiled Majorana 1, the world's first quantum chip using topological qubits.The chip is a major step towards achieving practical quantum computing and has the potential to solve industrial-scale problems.The Majorana 1 chip can hold one million qubits on a single chip, paving the way for a million-qubit processor.Microsoft's Majorana 1 incorporates eight topological qubits using indium arsenide and aluminium.