TECHNOLOGY & TELECOMMUNICATIONS

Hewlett-Packard Co. to Buy Supercomputer Maker: The Palo Alto-based company, expanding its already broad product line, said it is buying Convex Computer Corp., a Richardson, Tex., maker of supercomputers, for about $150 million in stock. The deal, in which Convex will become a subsidiary of Hewlett-Packard, is a natural outgrowth of the companies’ 3-year-old alliance in which Convex adopted HP’s chip technology, executives said. Convex has suffered from losses and falling revenue.