ECE 2030 B 1:00pm
Computer Engineering
Fall 2004
4 problems, 4 pages
Exam One Solutions
15 September 2004
1
Problem 1 (3 parts, 30 points)
Incomplete Circuits
For each partial switch circuit below, complete the complementary switching network so the
circuit contains no floats or short. Also write the Boolean expression computed by the completed
circuit. Assume the inputs and their complements are available.
B
D
C
Out
x
A
Out
y
A
B
E
C
D
F
A
D
B
Out
z
E
C
no dot
E
A
D
B
E
C
A
B
C
D
E
F
A
B
C
D
OUTx =
C
E
B
D
A
+
+
⋅
+
)
(
)
(
OUTy =
F
E
D
C
B
A
⋅
⋅
⋅
⋅
⋅
OUTz =
D
C
B
A
⋅
+
⋅

This
** preview**
has intentionally

**sections.**

*blurred***to view the full version.**

*Sign up*