TY - BOOK AU - O'Leary,Timothy J. AU - O'Leary,Linda I. AU - O'Leary,Daniel A. TI - Computing essentials 2015: Introductory T2 - The O'Leary series SN - 9781259223150 AV - QA76.5 .O451 2015 U1 - 004 22 PY - 2015/// CY - Boston PB - McGraw Hill Higher Education KW - Computers KW - Electronic data processing KW - Microcomputers N1 - Includes bibliographical references and indexes; I.T Essentials; AA231 ER -