Utilize the input text as a context reference, choose the right relationship between National Semiconductor and Texas Instruments from the options. Options: product/material produced, manufacturer, distributed by, industry, position held, original broadcaster, owned by, founded by, distribution format, headquarters location, stock exchange, currency, parent organization, chief executive officer, director/manager, owner of, operator, member of, employer, chairperson, platform, subsidiary, legal form, publisher, developer, brand, business division, location of formation, creator.

AN APPETITE FOR CHIPS Analog's rivals, such as National Semiconductor Corp., Texas Instruments Inc. and Linear Technology Corp., also advanced.

Answer: parent_organization