TY - BOOK AU - O'Leary,Timothy J. AU - O'Leary,Linda I. TI - Computing essentials,1995-1996 SN - 0070490457. AV - QA76 .O44 1996 U1 - 004 20 PY - 1996/// CY - Boston PB - McGraw-Hill KW - Electronic data processing N1 - Includes index ER -