Q. If we need a low noise device, we should use

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Q. The principal of locality of reference justifies the use of

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Q. The contents of the commands register are 23 H. Then port C

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Q. Which of the following bus is used to transfer data from main memory to peripheral device?

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Q. Assertion (A): The output of an 8 bit ADC is 80 H if input is 2.5 V

Reason (R): ADC has an output range of 00 to FF H if input range is - 5 to + 5 V

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Q. A parity detector can detect

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Q. Which of the- following display consumes least amount of power?

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Q. The converter whose conversion time is independent of number of bits is

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Q. Serial input data of 8085 can be loaded into bit-7 of the accumulator by

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Q. A crystal is frequently used in digital circuits for timing purpose because of its

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Q. The value of program counter of 6800 at power on are after reset is

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Q. The Boolean expression for the sub-class (Q) of all electronic instruments which are measuring instruments or are non-digital instruments with battery supply is

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Q. Serial in-serial out shift register can be built using D flip flops.

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Q. A binary ladder network D/A converter requires

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Q. An 8085 microprocessor based system uses a 4 k x 8 bit RAM whose address in AAOOH. The address of the last byte in this RAM is

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Q. Read the following statements: Dual slope ADC provides

1. higher speed as compared to other ADC
2. very good accuracy
3. good rejection of power supply
4. better resolutions compared to other ADC for the same number of bits

Which of the above are correct?

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Q. In 8085 microprocessor, how many I/O ports can be accessed by memory mapped method?

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Q. "Micro-program" is

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Q. The number of programmable 16 bit registers of 6800 are

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Q. In 8085 microprocessor, if interrupt service requests have been received from all of the following interrupts, then which one will be serviced first?

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