QUESTION 1
1. Which answer is an example of a product-of-sum (POS) expression?
X = ABC
X = AB + CD
X = (A + B)(C + D)
X = A + B + C
QUESTION 2
1. Which Boolean equation results from this Karnaugh map?
QUESTION 3
1. Which Boolean equation results from this Karnaugh Map?
QUESTION 4
1. Anything ANDed with a 0 is equal to
0.
1.
itself.
its complement.
QUESTION 5
1. To symbolize the inversion of the output signal, the logic gate has a bubble on the output line. Which of the following is the inversion of AND gate.
QUESTION 6
1. Solve this binary problem: 11001111 -01110000
01101111
01111111
01011111
10001111
QUESTION 7
1. Solve this binary problem: 00010111 + 00101001
01000000
00101111
01100000
00110011
QUESTION 8
1. Solve this binary problem: 101101 x 1011
1011011112
1111111112
1101011112
1111011112
QUESTION 9
1. Solve this binary problem:1110÷0010
1010
1001
0111
0101
QUESTION 10
1. The binary addition of 0 + 1 =
sum = 1 carry = 1
sum = 1 carry = 0
sum = 0 carry = 0
sum = 0 carry = 1
QUESTION 11
1. What is the two's complement of 01001110?
10110010
10011110
00111110
10111111
QUESTION 12
1. What is the hexadecimal symbol for decimal 10?
H
C
B
A
QUESTION 13
1. A four-bit adder can perform
logical AND.
addition.
subtraction.
all of the above
QUESTION 14
1. A combinational logic circuit that converts binary information from n inputs to a maximum of 2n unique outputs is known as a
Multiplexer
Decoder
Comparator
Demultiplexer
QUESTION 15
1. Which device is used in the design of computer memory address selection hardware?
multiplexer
encoder
demultiplexer
decoder
QUESTION 16
1. The data storage device which can be constructed using two NAND gates or two NOR gates is the
J-K flip-flop.
multiplexer.
S-R flip-flop.
encoder.
QUESTION 17
1. The flip-flop is the basic circuit used in
arithmetic circuits.
sequential logic circuits.
combinational logic circuits.
all of the above
QUESTION 18
1. Write a program in VHDL for the expression Y=AB'C + A'B'C + A B'C' + A'BC
QUESTION 19
1. Write a program in VHDL for the following logic circuit:
For the toolbar, press ALT+F10 (PC) or ALT+FN+F10 (Mac).