TY  - BOOK
AU  - Tomsho, Greg 
TI  - Guide to operating systems
SN  - 9781305107649    
AV  - QA 76.76.O63 T66 2017 CIRC 
PY  - 2017///.
CY  - Australia
PB  - Cengage Learning, 
KW  - Operating systems (Computers)
N1  - Includes index.
ER  -