1- The logical expression Y (A, B, C, D) = (0, 3, 5, 7, 8, 12, 14) is equivalent to A) Y (A, B, C, D) = II (0, 3, 5, 7, 8, 12, 14) C) Y (A, B, C, D) = II (1, 2, 4, 6, 9, 10, 11, 13, 15). D) Y (A, B, C, D) = E (1, 2, 4, 6, 9, 10). E) None of the above. B) Y (A, B, C, D) = (1,2, 4, 6, 9, 10, 11, 13, 15 2- (AC)16 + (63)s equal A) (16F)16 C) (EF)16 3- If X = 1, Y =0,Z=1 the result of ( X O Y) Z equal C) 0 B) (DF)16 D) Not all above A) 1 B) 1 or 0 D) Not all above.

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1- The logical expression Y (A, B, C, D) = (0, 3, 5, 7, 8, 12, 14) is equivalent to
А) Y (A, В, С, D) %3D П (0, 3, 5, 7, 8, 12, 14)
C) Y (A, B, C, D) = II (1, 2, 4, 6, 9, 10, 11, 13, 15). D) Y (A, B, C, D) = (1, 2, 4, 6, 9, 10).
E) None of the above.
B) Y (A, B, C, D)3D (1, 2, 4, 6, 9, 10, 11, 13, 15).
2- (AC)16 + (63)s equal
A) (16F)16
B) (DF)16
C) (EF)16
D) Not all above
3- If X = 1, Y = 0,Z 1 the result of ( X OY) Z equal
B) 1 or 0
4- Assume the following input level of parallel full adder
A) 1
С) 0
D) Not all above.
A4 A3 A2 Aj Ao = 10010 , B4 B3 B2 BỊ Bo = 11100 Co 0
What is the logic level at the output of FA2 and FA4?
B) 1 and 0
5- Express the decimal number (- 212) in the sign-magnitude forms
B) 011010100
A) 0 and 0
C) 1 and 1
D) Not all above
A) 111010100
C) 11010100
D) Not all above.
6- ( r" - N) to find
A) Third complements.
7- Which gate produce 1 out puts when the all inputs are same.
A) OR
B) Second complements.
C) First complements.
D) Not all above.
B) AND
C) EX-OR
D) EX-NOR
E) Not all above
9- A half adder can be constructed from: -
A) Tow XNOR gates only.
C) One XOR and one AND gate with their outputs connected in parallel.
B) One XOR and one AND gate with their inputs connected in parallel.
D) Not all above.
10-What is the weight of the MSB of a 16-bit number?
A) (32768)10
B) (65536)10
C) (1)10
D) (2)10
E) None of above
11-Write the next four numbers in this hexa counting sequence:
EFA, EFB, EFC, EFD,
A) EFE, EFF, EFF1, EFF2
D) EFE, EFF, FO0, F01
12-2's complement representation of (16)10 is:
A) 00001
C) EFE, EFF, F11, F12
B) EFE, EFF, EF1, EF2
E) None of the above.
B) 01111
C) 10001
D) 10000
E) None of the above.
Transcribed Image Text:1- The logical expression Y (A, B, C, D) = (0, 3, 5, 7, 8, 12, 14) is equivalent to А) Y (A, В, С, D) %3D П (0, 3, 5, 7, 8, 12, 14) C) Y (A, B, C, D) = II (1, 2, 4, 6, 9, 10, 11, 13, 15). D) Y (A, B, C, D) = (1, 2, 4, 6, 9, 10). E) None of the above. B) Y (A, B, C, D)3D (1, 2, 4, 6, 9, 10, 11, 13, 15). 2- (AC)16 + (63)s equal A) (16F)16 B) (DF)16 C) (EF)16 D) Not all above 3- If X = 1, Y = 0,Z 1 the result of ( X OY) Z equal B) 1 or 0 4- Assume the following input level of parallel full adder A) 1 С) 0 D) Not all above. A4 A3 A2 Aj Ao = 10010 , B4 B3 B2 BỊ Bo = 11100 Co 0 What is the logic level at the output of FA2 and FA4? B) 1 and 0 5- Express the decimal number (- 212) in the sign-magnitude forms B) 011010100 A) 0 and 0 C) 1 and 1 D) Not all above A) 111010100 C) 11010100 D) Not all above. 6- ( r" - N) to find A) Third complements. 7- Which gate produce 1 out puts when the all inputs are same. A) OR B) Second complements. C) First complements. D) Not all above. B) AND C) EX-OR D) EX-NOR E) Not all above 9- A half adder can be constructed from: - A) Tow XNOR gates only. C) One XOR and one AND gate with their outputs connected in parallel. B) One XOR and one AND gate with their inputs connected in parallel. D) Not all above. 10-What is the weight of the MSB of a 16-bit number? A) (32768)10 B) (65536)10 C) (1)10 D) (2)10 E) None of above 11-Write the next four numbers in this hexa counting sequence: EFA, EFB, EFC, EFD, A) EFE, EFF, EFF1, EFF2 D) EFE, EFF, FO0, F01 12-2's complement representation of (16)10 is: A) 00001 C) EFE, EFF, F11, F12 B) EFE, EFF, EF1, EF2 E) None of the above. B) 01111 C) 10001 D) 10000 E) None of the above.
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