TY  - BOOK
AU  - Alexander, Tom
TI  - Computer Operating System
SN  - 9788183423182
U1  - 005.43 
PY  - 2014///
CY  - India
PB  - Crescent Publishing Corporation
KW  - Operating System
KW  - UNIX OS
KW  - Macintosh OS
KW  - Google Chrome OS
KW  - GNU and Linus OS
ER  -