Exhibit A Subsidiaries of the Registrant Name of Subsidiary Jurisdiction of Incorporation C.A. Computer Associates GmbH Germany C.A. Computer Associates Israel Ltd. Israel C.A. Computer Associates S.A. Spain CA Islandia Realty, Inc. New York CA Management, Inc. Delaware CA Services, Inc. Delaware Computer Associates AG Switzerland Computer Associates Canada Ltd. Canada Computer Associates CIS Ltd. Russia Computer Associates de Argentina S.A. Argentina Computer Associates do Brasil Ltda. Brazil Computer Associates de Chile Ltd. Chile Computer Associates de Columbia S.A. Colombia Computer Associates de Mexico, S.A. de C.V. Mexico Computer Associates de Venezuela, C.A. Venezuela Computer Associates Finland OY Finland Computer Associates International (China) Ltd. China Computer Associates International G.m.b.H. Austria Computer Associates International Limited Hong Kong Computer Associates Korea Ltd. Korea Computer Associates Ltd. Sti. Turkey Computer Associates (M) Sdn. Bhd. Malaysia Computer Associates Middle East WLL Bahrain Computer Associates Norway A/S Norway Computer Associates (N.Z.) Ltd. New Zealand Computer Associates Plc United Kingdom Computer Associates Products Nederland B.V. The Netherlands Computer Associates Pte. Ltd. Singapore Computer Associates Pty. Ltd. Australia Computer Associates S.A. Belgium Computer Associates S.A. France Computer Associates Scandinavia A/S Denmark Computer Associates S.p.A. Italy Computer Associates Sucursal en Portugal Portugal Computer Associates Sweden AB Sweden Computer Associates Taiwan Ltd. Taiwan Computer Associates (Thailand) Co. Ltd. Thailand Cullinet Software, Inc. Massachusetts Infresco Corporation Delaware Ingres Corporation Delaware Legent Corporation Delaware Nantucket Corporation California On-Line Software International, Inc. Delaware Pansophic Systems, Incorporated Illinois Philippine Computer Associates International, Inc. Philippines Shanmore Ltd. Ireland The ASKGroup, Inc. Delaware <FN> All of the subsidiaries are 100%-owned by the Registrant or by a wholly owned subsidiary of the Registrant other than directors' qualifying shares which are held in trust for the Registrant or for such wholly owned subsidiary.