Exhibit 24.1 POWER OF ATTORNEY KNOW ALL MEN BY THESE PRESENTS, that each of the undersigned persons hereby constitutes and appoints Brian L. Halla, Donald Macleod, and John M. Clark III, and each of them singly, his true and lawful attorney-in-fact and in his name, place, and stead, and in any and all of his offices and capacities with National Semiconductor Corporation, to sign the Registration Statement with which this Power of Attorney is filed, and any and all amendments to said Registration Statement, and generally to do and perform all things and acts necessary or advisable in connection therewith, and each of the undersigned hereby ratifies and confirms all that each of said attorneys-in-fact may lawfully do or cause to be done by virtue hereof. IN WITNESS WHEREOF, each of the undersigned has hereunto executed this Power of Attorney as of the date set forth opposite his signature. SIGNATURE DATE --------- ---- /s/ BRIAN L. HALLA October 16, 1997 - --------------------------------- Brian L. Halla /s/ GARY P. ARNOLD October 16, 1997 - --------------------------------- Gary P. Arnold /s/ ROBERT BESHAR October 16, 1997 - --------------------------------- Robert Beshar /s/ MODESTO A. MAIDIQUE October 15, 1997 - --------------------------------- Modesto A. Maidique /s/ EDWARD R. McCRACKEN October 17, 1997 - --------------------------------- Edward R. McCracken /s/ J. TRACY O'ROURKE October 20, 1997 - --------------------------------- J. Tracy O'Rourke /s/ CHARLES E. SPORCK October 17, 1997 - --------------------------------- Charles E. Sporck /s/ DONALD E. WEEDEN October 16, 1997 - --------------------------------- Donald E. Weeden /s/ DONALD MACLEOD October 15, 1997 - --------------------------------- Donald Macleod /s/ RICHARD D. CROWLEY, JR. October 15, 1997 - --------------------------------- Richard D. Crowley, Jr.