EXHIBIT 23.1 The Board of Directors Casino Data Systems: We consent to incorporation by reference in the registration statements (No. 333-66275 and No. 333-63577) on Form S-8 of Casino Data Systems of our report dated February 23, 1999, relating to the consolidated balance sheets of Casino Data Systems and subsidiaries as of December 31, 1998, and the related consolidated statements of operations, shareholders' equity, and cash flows for each of the years in the two-year period ended December 31, 1998, and the related financial statement schedule, which report appears in the December 31, 1999, annual report on Form 10-K of Casino Data Systems. KPMG LLP Las Vegas, Nevada March 28, 2000