Arthur Andersen LLP 225 Franklin Street Boston, MA 02110-2812 April 29, 1998 Office of the Chief Accountants SECPS Letter File Securities and Exchange Commission Mail Stop 9-5 450 Fifth Street, N.W. Washington, DC 20549 Dear Sirs: We have read Items (a) through (d) included in the attached Form 8-K of Cambex Corporation to be filed with the Securities and Exchange Commission and are in agreement with the statements contained herein. Very truly yours, Arthur Andersen LLP [S] [C]