000 00390nam a2200145Ia 4500
008 220120s9999||||xx |||||||||||||| ||und||
020 _a9788131520123
082 _a005.43 DHA
100 _aDhamdhere D. M
245 0 _aOperating sy ems
250 _a3rd
260 _aMcgraw hill book company
_bNew Delhi
_c2012
300 _aXXIII, 644p.
_b425
650 _aELECTRONICS AND COMMUNICATIONS
999 _c132916
_d132916