00297nam a2200121 a 450000500170000002000150001708200160003210000250004824500290007325000120010226000350011430000260014920251203110624.0  a8120320638  a005.43bTAN  aTanenbaum, Andrew S.  aModern Operating Systems  a2nd ed.  aDelhibPearson Educationc2001  axxiv,951p.c24 cm. PB