AST Research Inc., an Irvine personal computer...

AST Research Inc., an Irvine personal computer maker, said Friday that it plans to buy back up to $5 million of the company’s common stock or convertible debentures. AST President Safi U. Qureshey said the company is undertaking the repurchase because it believes its stock is currently undervalued in the market and will make an “attractive investment” for the company. The company said the purchases will be made “from time to time in the open market,” he said.