Abstract :
¿Although West´s purposes were not illegal, they were sly, and he had no intention of embarrassing the friend who gave him permission to visit this room¿. The cabinet he opened contained the VAX´s Central Processing Unit, known as the CPU ¿ the heart of the physical machine. In the VAX, twenty-seven printed-circuit boards, arranged like books on a shelf, made up this thing of things. West spent most of the rest of the morning pulling out boards; he´d examine each one, then put it back.¿
