TY  - BOOK
AU  - O'Leary,Timothy J.
AU  - O'Leary,Linda I.
TI  - Computing essentials 2021
SN  - 9781260570755 (pbk.)
U1  - 004 
PY  - 2021///
CY  - New York
PB  - McGraw-Hill
KW  - Computers
KW  - Electronic data processing
N1  - Includes glossary and index
ER  -