00375nam a2200145 a 450000500170000002000150001710000220003224500260005425000120008026000320009230000210012449000400014570000240018570000200020920251203091331.0  a0071007423  aHamacher, V. Carl  aComputer organisation  a3rd ed.  aNew YorkbMcGraw-Hillc1990  axx,617p.c23 cm.  aMcGraw-Hill computer science series  aVranesic, Zvonko G.  aZaky, Safwat G.