00476nam a22001817a 450000500170000001000140001702000100003103500130004103700130005408200110006710000140007824500580009226000470015027000220019730000220021965000340024170000190027520100809154811.0  aENG-99123  c50.00  aEN-82655  bDBAD/PUB  a005.43  aGopu Ramu  aOperating systems /cby Gopu Raju [and] A. Ravi Kiran  aVijaywadabSri Balaji Publicationsc(200?)  bVijaywadae520002  a143p.c22cm (pbk)  aOperating Systems (Computers)  aKiran, A. Ravi