00320    a2200109   4500020001500000082001500015100002100030245004800051260004200099300002100141650004800162  a0895121824  a004.1bWAL  aWalker, Roger S.  aUnderstanding computer science applications  aDallasbTexas instrumentsc1985g1985  aiv, 283p.c22cm.  aGeneral works on specific types of computer