6.2) (a) 4-bit binary counter, (b) 3-bit Gray code counter
5.3) (a) Moore machine, (b) Mealy machine
7.3) (a) PROM, (b) EPROM
3.3) F = (x'y + xy')'
4.1) (a) 4-input multiplexer, (b) 3-input decoder
6.1) (a) 4-bit shift register, (b) 3-bit Johnson counter
3.2) F = (x + y)'(x' + y')



