Questions 301 to 310
Specify the Complement for the equation, F=AB+C’D’+B’D.`
(a) (A+B’)(C’+D)(B+D’) (b) (A’+B’)(C+D)(B+D’)
(c) (A’+B’)(C’+D’)+(B+D’) (d) (A’+B’)+(C+D)+(B’+D)
(e) (A’+B’)(C’+D’)(B+D’).
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Identify the input device in which finger shows the cursor movement.
(a) Mouse (b) Scanner (c) Glide pad (d) Microphone
(e) Trackball.
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Name the keyword to specify the number of pixels displayed on the screen.
(a) Cell (b) Color depth (c) Monitor size (d) Resolution
(e) Refresh rate.
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Subtract the given unsigned decimal numbers by taking the 10's complement of the subtrahend. 5250 - 1321
(a) 3928 (b) 3828 (c) 3929 (d) 3927 (e) 3729.
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From the given k-map, give the simplified equation for F.
(a) D + B'C (b) D'+BC (c) D + B'C' (d) D + BC' (e) D + BC.
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If XY = 0 then what is the value of XY ?
(a) X (b) Y (c) (X’+Y’) (d) (X+Y) (e) XY.
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Specify the hexadecimal equivalent of a decimal number , 10.
(a) A (b) B (c) C (d) D (e) E.
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Identify the 2’s complement of 101010101.
(a) 010101010 (b) 101010101 (c) 010101000
(d) 110101011 (e) 010101011.
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Name the operation represented by .
(a) OR (b) AND (c) XOR (d) COMPLEMENT (e) NOR.
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Which one of the following instructions represents .
(a) Memory reference (b) Register reference
(c) I/O instruction (d) A and C above
(e) None of the above.
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Answers
Answer : (b)
Reason: As OR gates becomes AND gates & values change to their complements
F’ = (A’+B’)(C+D)(B+D’).
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Answer : (c)
Reason: Glide pad is a input device for which finger shows the cursor movement.
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Answer : (d)
Reason: Resolution is the number of pixels displayed on the screen.
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Answer : (c)
Reason: 10’s complement as 1321 = 8679 5250 + 8679
3929 – discard the carry.
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Answer : (a)
Reason: Simplify eight 1’s grouped toget D and remaining four 1’s to get B’C
D + B’C.
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Answer : (d)
Reason: If XY = 0 XY = X + Y.
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Answer : (a)
Reason: The Hexadecimal equivalent of a decimal number, 10 is A.
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Answer : (e)
Reason: 2’s complement of 101010101 is 010101011.
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Answer : (b)
Reason: ‘’ denotes AND.
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Answer : (b)
Reason: As 15th bit is 0 and Opcode 111 Register reference.
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