EXHIBIT 23.1 CONSENT OF INDEPENDENT ACCOUNTANTS We hereby consent to the incorporation by reference in this Registration Statement on Form S-8 of our report dated November 15, 2000 relating to the financial statements and financial statement schedule, which appears in Applied Materials, Inc.'s Annual Report on Form 10-K for the year ended October 29, 2000. /s/ PricewaterhouseCoopers LLP San Jose, California December 21, 2001