Texas Instruments unveiled the world's first artificial intelligence microprocessor on a single chip, breaking an impasse in industry attempts to package more computing power and complexity in a smaller space . . . Motel 6 announced that it has opened three new motels and has acquired six Apple Inns, with a seventh property under contract . . . The Investment Company Institute reported that the assets of the nation's 381 money-market mutual funds rose $720.4 million in the week ended Feb. 25.