TY  - BOOK
AU  - Deitel,Harvey M.
TI  - Operating systems
SN  - 8178080354
PY  - 1990///
CY  - New Delhi
PB  - Pearson Education
KW  - Operating systems (Computers)
KW  - Computer operating systems
KW  - sears
N1  - Includes bibliographical references and includes index
ER  -