Exhibit 23.1 ------------ CONSENT OF INDEPENDENT PUBLIC ACCOUNTANTS We hereby consent to the incorporation by reference in this Pre-Effective Amendment No. 1 to Form S-3, Registration Statement of our report dated February 13, 1998 (except for Note 10 which is as of March 20, 1998) included in Nexar Technologies, Inc.'s Annual Report on Form 10-K for the year ended December 31, 1997 and all references to our firm included in this Registration Statement. BDO Seidman, LLP Boston, Massachusetts June 3, 1998