TI agrees to buy National Semiconductor for $6.5 billion
Texas Instruments Inc. said Monday that it has agreed to buy competitor National Semiconductor Corp. for $6.5 billion .
Dallas-based Texas Instruments Inc. is buying National Semiconductor for $6.5 billion, which would be a marriage of two of the world's premier makers of analog chips, widely used in electronics to transform signals such as sound into digital form that computers can understand.