TY - BOOK AU - Morley, Deborah AU - Parker, Charles S. TI - Understanding Computers : : today and tomorrow: comprehensive SN - 13: 978-1-4239-2521-7 AV - 004 M81u c2009 PY - 2009/// CY - Boston, MA PB - Course Technology CENGAGE Learning KW - Computer KW - Electronic data processing KW - Computer science ER -