70801. An index register in digital computer is a register to be used for
70802. Assuming accumulator contain A 64 and the carry is set (1). What will register A and carry (CY) contain after ORA A?
70803. 2's complement of a given 3 or more bit number of non-zero magnitude is the same as the original number if all bits except
70804. A half adder adds __________ bits and a full adder adds __________ bits.
70805. When a binary adder is used as BCD adder, the sum is
70806. A gate in which shift register is connected as shown in the figure below. How many clock pulse (after reset to '0') the contents of the shift register are '000' again?
70807. Out of SR and JK flip flops, which is susceptible to race condition?
70808. Which liquid crystal is used for LCD display?
70809. If interrupt service request have been received from all of the following interrupts, then which one will be serviced last?
70810. In order to enable TRAP interrupt, which of the following instructions are needed?
70811. If modulus is less than 2N, some states of the counter are skipped by using NAND gates.
70812. Two 16 : 1 and one 2 : 1 multiplexers can be connected to form a
70813. What are the contents of the accumulator after the RIC has been executed?
70814. Assertion (A): In a magnitude comparator IC the cascading inputs provide a means to cascade the 4 bit comparators Reason (R): A magnitude comparator has three outputs, A = B, A > B and A < B
70815. For the K map of the given figure the simplified Boolean expression is
70816. Assertion (A): It is possible that a digital circuit gives the same output for different input voltages Reason (R): A digital circuit is also called logic circuit.
70817. In a ring counter for N clock pulses the scale for the counter is
70818. Assuming accumulator contain A 64 and the carry is set (1). What will register A and (CY) contain after XRA A?
70819. 2's complement of (-24) =
70820. Some of MOS families are PMOS, NMOS, CMOS. The family dominating the LSI field where low power consumption is necessary is
70821. The ASCII code is
70822. The binary addition 1 + 1 =
70823. The Boolean function A + BC is a reduced form of
70824. Which of the following statements is not true in regard to storage time of a transistor?
70825. The inputs to logic gate are 0. The output is 1. The gate is
70826. In a JK master slave flip flop race condition does not occur.
70827. State transition table and state transition diagram form part of design steps for
70828. Which binary subtraction is incorrect?
70829. Consider the following statements: Race around condition can occur in JK flip flop when both inputs are 1A flip flop is used to store one bit of informationA transparent latch is a D type flip flopMaster slave flip flop is used to store two bits of information Which of the above are correct?
70830. D FF can be used as a
70831. In flip flops the duration of clock pulse is about
70832. Which of the following is decimal equivalent of the binary 1111111?
70833. A 555 timer can be used as
70834. Which of the following statements defines a full adder?
70835. In 8085 microprocessor, what is the memory word size?
70836. Which of the following memory is preferred in case of calculators?
70837. Which device changes parallel data to serial data?
70838. A 12 bit ADC is employed to convert an analog voltage of zero to 10 volts. The resolution of the ADC is
70839. Race condition always arises in
70840. The expression Y (A, B, C) = ∑m (1, 3, 5, 6) is to realized using a multiplexer. Then
70841. A microprocessor with a 16 bit address bus is used in a linear memory selection configuration. Address bus lines are directly uses as chip selects of memory chips with 4 memory chips the maximum addressable memory space is
70842. An I/O processor control the flow of information between
70843. The process of entering data into ROM is called
70844. Which of the following conversion is incorrect?
70845. The output of basic DTL configuration is
70846. The number of flip flops required to construct a register to store number 10210 in binary form is
70847. Minimum no. of 2 I/P NAND gate required to implement the Boolean function Z = ABC, assuming that A, B and C are available is
70848. In 8085 microprocessor, which of the following interrupts is unmaskable interrupts?
70849. The 8085 microprocessor is interrupted while executing MOV instruction at location 0210 H. What is the location at which contents of register E are stored.
70850. The amplifier used in bootstrap voltage sweep should have a gain of
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