In 1981, Microsoft hired Charles Simonyi, the primary developer of Bravo, the first GUIword processor, which was developed at Xerox PARC.[7] Simonyi started work on a word processor called Multi-Tool Word and soon hired Richard Brodie, a former Xerox intern, who became the primary software engineer.[7][8][9] Microsoft announced Multi-Tool Word for Xenix[7] and MS-DOS in 1983.[10] Its name was soon simplified toMicrosoft Word.[4] Free demonstration copies of the application were bundled with the November 1983 issue ofPC World, making it the first to be distributed on-disk with a magazine.[4][11] That year Microsoft demonstrated Word running on Windows.[12]