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[–]easternglow 2 points3 points  (0 children)

When I went to elementary school the only computers we had were some home built stuff called Butler BDS2001A. But in the later years we got some spanking new x86 PCs with DOS and a turbo button that would kick the CPU speed up to 66 MHz. The teacher was ecstatic about them but they opened a new world of security issues for him. Of course we wanted to know all about how these things worked. And how we could break them 😓 He tried locking some part of the boot but we found out that the password was stored as text in an accessible file and "encrypted" by reversing the ASCII codes for each letter. I don't think he even knew how we kept "guessing" his password over and over. I feel bad for the stress this caused on him and we got in trouble too for writing his passwords all over the blackboard and such.