Conversion of decimal number 6110 to it's binary number equivalent is
A. 1100112
B. 110011102
C. 1111012
D. 111112
E. None of the above
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An OR gate can be imagined as
A. switches connected in series
B. switches connected in parallel
C. MOS transistors connected in series
D. All of the above
E. None of the above
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Address 200H contains the byte 3FH. What is the decimal equivalent of 3FH
A. 63
B. 32
C. 16
D. 38
E. None of the above
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Conversion of an octal number 1128 to hexadecimal number is
A. 4A16
B. 5A16
C. 1516
D. 2016
E. None of the above
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The functional difference between SR flip-flop and JK flip-flop is that
A. JK flip-flop is faster than SR flip-flop
B. JK flip-flop has a feed back path
C. JK flip-flop accepts both inputs 1
D. JK flip-flop does not require external clock
E. None of the above
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The inverter OR gate and AND gate are called decision-making elements because they can recognize some input _____ while disregarding others. A gate recognizes a word when its output is _____
A. words, high
B. bytes, low
C. bytes, high
D. character, low
E. None of the above
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A positive AND gate is also a negative
A. NAND gate
B. NOR gate
C. AND gate
D. OR gate
E. None of the above
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In which code the successive code characters differ in only one bit position?
A. gray code
B. excess 3 code
C. 8421 code
D. algebraic code
E. None of the above
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Conversion of binary number 1011012 to hexadecimal is
A. 3716
B. 2D16
C. 2E16
D. 2716
E. None of the above
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ASCII and EBCDIC differ in
A. their efficiency in storing data
B. the random and sequential access method
C. the number of bytes used to store characters
D. their collecting sequences
E. None of the above
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A p- channel enhancement type MOSFET performs much the same function as a PNP transistor, except that
A. it operates much faster
B. it is considerably larger
C. it is controlled by voltage rather than by current, so that it requires very little current at the control terminal
D. it is controlled by current rather than by voltage like a bipolar transistor.
E. None of the above
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De Morgan's second therm says that NAND gate is equivalent to a bubbled _____ gate.
A. AND
B. XAND
C. XOR
D. OR
E. None of the above
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What logic function is produced by adding an inverter to each input and the output of an AND gate?
A. NAND
B. NOR
C. OR
D. XOR
E. None of the above
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When a transistor is cut off or saturated, transistor _____ have almost no effect
A. wave
B. variations
C. stage
D. circuits
E. None of the above
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Express -7 as 16-bit signed binary numbers.
A. 0000 0000 0000 0111
B. 1000 0000 0000 0111
C. 0111 0000 0000 0001
D. 0111 0000 0000 0000
E. None of the above
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With an RS latch a high S and low R sets the output to _____ ; a low S and a high R _____ the output to low.
A. No change, set
B. Race, high
C. high, reset
D. set, reset
E. None of the above
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Flip-flop outputs are always
A. complimentary
B. the same
C. independent of each other
D. same as inputs
E. None of the above
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The output 0 and 1 levels for TTL logic family is approximately
A. 0.1 and 5 V
B. 0.6 and 3.5 V
C. 0.9 and 1.75V
D. -1.75 and -0.9 V
E. None of the above
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A _____ TTL device can sink up to 16mA and can source up to 400 MA.
A. Low-power
B. high-power
C. Standard
D. Schottky
E. None of the above
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What is the 2's complement of 0011 0101 1001 1100 number?
A. 1100 1010 1100 1011
B. 1100 1010 0110 0011
C. 1100 1010 0110 0100
D. 1100 1010 1111 1111
E. None of the above
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