70501. Binary number 11001 is equivalent to decimal number
70502. 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:
70503. Assertion (A): Tristate logic is used for bus oriented systems Reason (R): The outputs of a tristate logic are 0, 1 and indeterminant.
70504. The value of 25 in octal system is
70505. Assertion (A): ECL gate has very high speed of operation.Reason (R): Transistors in ECL do not go into saturation region.
70506. 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.
70507. FF16 when converted to 8421BCD =
70508. ECL has high switching speed because the transistors are
70509. Karnaugh map can not be drawn when the number of variables is more than 4
70510. 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
70511. In which counter does the maximum frequency depend on the modulus?
70512. A current tracer responds to
70513. A presettable counter with 4 flip flops can start counting from
70514. A logical expression Y = A + A B is equal to
70515. Using the same flip flops
70516. 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
70517. If all the LEDs in a seven segment display are turned on, the number displayed is
70518. In a three input AND gate A = 1, B = 1, C = 0 The output Y =
70519. DeMorgan's first theorem shows the equivalence of
70520. 0.10112 = __________ .
70521. If memory chip size is 256 x 1 bits, the number of chips required to make 1 k byte memory is
70522. Computers use RC circuit for edge triggering.
70523. The function Y = AC + BD + EF is
70524. Assertion (A): A multiplexer can be used for data routing.Reason (R): A multiplexer has one input and many outputs.
70525. Probabilistic packet marking is technique used in support of
70526. A 3 bit up-down counter can count from
70527. The density of dynamic RAM is
70528. A 3 input NAND gate is to be used as inverter. Which of the following will give better results?
70529. The maximum counting range of a four stage counter using IC 74193 is
70530. A multilevel decoder is more costly as compared to single level decoder.
70531. EPROM can be
70532. A full subtractor has a total of
70533. The function of interface circuit is
70534. 127416 - 3A716 = __________ .
70535. With four Boolean variables, how many Boolean expressions can be performed?
70536. A + (B . C) =
70537. To count 1000 bottles in a milk plant, the minimum number of flip flops requires is
70538. Decimal 8 in excess-3 code =
70539. The inputs to a 3 bit binary adder are 1112 and 1102. The output will be
70540. BCD number 1100111 = __________ 10
70541. The K-map for a Boolean function is shown in figure. The number of essential prime implicants for this function is
70542. When microprocessor processes both positive and negative numbers, the representation used is
70543. An AND gate has four inputs. One of the inputs is low and other inputs are high. The output
70544. In the given figure, the flip flop is
70545. The number of switching functions of 3 variables are
70546. The applications of shift registers are Time delayRing counterSerial to parallel data conversionSerial to serial data conversion Which of the above are correct?
70547. Assertion (A): ECL is fast as compared to TTL.Reason (R): ECL dissipates less power than TTL.
70548. Assertion (A): Synchronous counter has higher speed of operation than ripple counter Reason (R): Synchronous counter uses high speed flip flops.
70549. What will be the maximum conversion time in 6 bit dual slope A/D converter uses a reference of -6v and a 1 MHz clock. It uses a fixed count of 40 (101000).
70550. The modulus of counter in the given figure is
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