Notes for February 28, 1997

1.	Hello

a.	HW 2: still going, humble apologies...

b.	No more programming assignments!

c.	Homweork #4 and #5: no programs, but have weight equal to others

2.	Puzzle of the day

a.	If it isnşt UNIX, youşre drawing a bogus conclusion

3.	ISO/OSI model

4.	ISA threat model