set-2
51. The binary code of (73)10 is
52. An AND gate will function as OR if
53. An OR gate has 6 inputs. How many input words are in its truth table?
54. An OR gate has 6 inputs. What is the only input word that produces a 0 input?
55. An AND gate has 7 inputs. How many input word are in its truth?
56. An AND gate has 7 inputs, what is the only input word that produces a 1 output?
57. A NOR gate has or more input signals. All inputs must be … to get a high output
58. A NOR gate recognizes only the input word whose bits are…
59. The NOR gate is logically equivalent to an OR gate followed by an …
60. De Morgan's first theorem says that a NOR gate is equivalent to a bubbled … gate
61. A NAND gate is equivalent to an AND gate followed by an inverter. All inputs must be…to get a low output
62. De Morgan's second theorem says that NAND gate is equivalent to a bubbled ……gate
63. An XOR gate recognizes only words with an ……number of 1's
64. The 2-input XOR gate has a high output only when the input bits are…
65. The XOR gates are ideal for testing parity because even-parity words produce a …. Output and odd-parity words produce a ……output
66. An odd-parity generator produces an odd-parity bit to go along with the data. The parity of the transmitted data is ….. An XOR gate can test each received word for parity rejecting words with …. Parity
67. The EXCLUSIVE-NOR gate is equivalent to an ……gate followed by an inverter
68. Small-scale integration, abbreviated ….. refers to fewer than 12 gates on the same chip. Medium-scale integration (MSD) means 12 to 100 gates per chip. And large-scale integration (LST) refers to more than ……gates per chip
69. The two basic technologies for digital ICs are bipolar and MOS. Bipolar technology is preferred for ...... and ...... whereas MOS technology is better suited to LSI
70. What is 1's complement of 0000 1111 0010 1101 number?
71. .....has become the most widely used bipolar family
72. .....is the fastest logic family' it's used in high-speed applications
73. .....dominates the LSI field and ....used extensively where lowest power consumption is necessary
74. The 7400 series, also called standard TTL, contains a variety of SSI and ... chips that allow us to build all kinds of digital circuits and systems
75. Standard TTL has a multiple emitter input transistor and a ..... output
76. The 7400-series devices are guaranteed to work reliably over a temperature range of 0 to .... and over a voltage range of 4.75 to 5.25 V
77. A ... TTL device can sink up to 16 mA and can source up to 400MA
78. The maximum number of TTL loads that a TTL device can drive reliably over the specified temperature range is
79. Digital design often starts by constructing a ..... table?
80. A preliminary guide for comparing the simplicity of logic circuits to count the number of input......leads
81. A bus is a group of .....carrying digitals signals
82. One way to simplicity the sum-of-products equation is to use Boolean algebra. Another way is the .....map
83. What are the fundamental products for inputs words ABCD = 0010, ABCD = 1101 and ABCD = 1110?
84. The ALU carries out arithmetic and numbers rather than decimal numbers
85. A half-adder adds....bits
86. A full-adder adds ....bits and producing a SUM and a....
87. A binary adder is a logic circuit that can add.....binary numbers at a time
88. The leading bit stands for the ...and the remaining bits for the ..., is known as signed binary numbers
89. Signed binary numbers requires too much hardware. This has led to the use of ... complements to represent negative numbers
90. A 2's-complement adder-subtracter can add or subtract binary numbers. Sign-magnitude numbers represent.....decimal numbers and 2's complements stands for .... Decimal numbers
91. How many full and half-adders are required to add 16-bit numbers?
92. Express-7 as 16-bits signed binary numbers
93. Convert the 1000 0000 0000 1111 signed binary number to decimal number
94. What is the 2's complement of 0011 0101 1001 1100 number?
95. What is the 2's-complement presentation of -24 in a 16-bit microcomputer?
96. A flip-flop is a ...element that stores a binary digit as a low or high voltage
97. 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
98. With a NAND latch a low R and a low S produce a:.....condition
99. Computers use thousands of flip-flops. To coordinate the overall action, a common signal called the ...is sent to each flip-flop
100. With positive clocking the clock signal must be.....for the flip-flop to respond
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