00550nam a2200205Ia 4500003000400000005001700004008004100021020001400062040001800076041000800094082002500102100001900127245005600146250001200202260004300214300002900257650001600286650002100302650002100323OSt20250201123017.0210716s1985    xx            000 0 und d  a914845462  cAIMIT LIBRARY  aeng  a006.620288 21bNORP  aNorton, Peter.  aProgrammers guide to the IBM PC /cBy Peter Norton.  a1st ed.  aWashington :bMicrosoft Press ,c1985.  axii,426p. ;bHBc23.1 cm  aDisk basics  aSound generation  aProgram building