57051. The number of counter states which an 8 bit stair step A/D converter has to pass through before conversion takes place is equal to
57052. 74 HC series can sink upto 4 mA. The 74 LS series has IIL(max) - 0.4 mA. How many 74 LS inputs be driven by 74 HC output?
57053. An 8 bit transistor register has output voltage of low-high-low-high-low-high-low-high. The decimal number stored is
57054. The number of cells in a 4 variable K map is
57055. Find the FSV (full scale voltage) in a 6 bit R-2R ladder D/A converter has a reference voltage of 6.5 V.
57056. Parallel adder is
57057. An 8 bit binary number is to be entered into an 8 bit serial shift register. The number of clock pulses required is
57058. In the given figure, A = B = 1 and C = D = 0. Then Y =
57059. Assertion (A): CMOS devices have very high speed.Reason (R): CMOS devices have very small physical size and simple geometry.
57060. Binary number 11001 is equivalent to decimal number
57061. Which of the following are included in the architecture of computer? Addressing mode, design of CPUInstruction set, data formatSecondary memory, operating system Select the correct answer using the codes given below:
57062. Assertion (A): Tristate logic is used for bus oriented systems Reason (R): The outputs of a tristate logic are 0, 1 and indeterminant.
57063. The value of 25 in octal system is
57064. Assertion (A): ECL gate has very high speed of operation.Reason (R): Transistors in ECL do not go into saturation region.
57065. Assertion (A): TTL is a very popular logic in SSI and MSI category.Reason (R): In Schottky TTL the power dissipation is less than in ordinary TTL.
57066. FF16 when converted to 8421BCD =
57067. ECL has high switching speed because the transistors are
57068. Karnaugh map can not be drawn when the number of variables is more than 4
57069. A dynamic RAM cell which holds 5 V has to be refreshed every 20 ms so that the stored voltage does not fall by more than 0.5 V. If the cell has a constant discharge current of 0.1 pA, the storage capacitance of cell is
57070. In which counter does the maximum frequency depend on the modulus?
57071. A current tracer responds to
57072. A presettable counter with 4 flip flops can start counting from
57073. A logical expression Y = A + A B is equal to
57074. Using the same flip flops
57075. A 10 bit ADC with a full scale output voltage of 10.24 V is to be designed to have ± LSB/2 accuracy. If ADC is calibrated at 25°C, the maximum net temperature coefficient of ADC should not exceed
57076. If all the LEDs in a seven segment display are turned on, the number displayed is
57077. In a three input AND gate A = 1, B = 1, C = 0 The output Y =
57078. DeMorgan's first theorem shows the equivalence of
57079. 0.10112 = __________ .
57080. If memory chip size is 256 x 1 bits, the number of chips required to make 1 k byte memory is
57081. Computers use RC circuit for edge triggering.
57082. The function Y = AC + BD + EF is
57083. Assertion (A): A multiplexer can be used for data routing.Reason (R): A multiplexer has one input and many outputs.
57084. Probabilistic packet marking is technique used in support of
57085. A 3 bit up-down counter can count from
57086. The density of dynamic RAM is
57087. The Government is inquiring ......... the matter.?
57088. A 3 input NAND gate is to be used as inverter. Which of the following will give better results?
57089. The maximum counting range of a four stage counter using IC 74193 is
57090. A multilevel decoder is more costly as compared to single level decoder.
57091. EPROM can be
57092. A full subtractor has a total of
57093. The function of interface circuit is
57094. 127416 - 3A716 = __________ .
57095. With four Boolean variables, how many Boolean expressions can be performed?
57096. A + (B . C) =
57097. To count 1000 bottles in a milk plant, the minimum number of flip flops requires is
57098. Decimal 8 in excess-3 code =
57099. The inputs to a 3 bit binary adder are 1112 and 1102. The output will be