Q. Which of the following buses does not exist in 8085?

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Q. The sign of a floating point number depends on

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Q. Assertion (A): A higher level language is less efficient that machine language but more efficient than assembly language.

Reason (R): It is easier to learn and use higher level language than machine language.

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Q. The accumulator drives the ALU.

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Q. System bus is the communication channel between microprocessor and peripherals.

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Q. One T state is precisely equal to one clock period.

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Q. Assertion (A): A good algorithm should be fast, require minimal computer memory and time.

Reason (R): Many times an algorithm is prepared in the form of a flow chart.

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Q. Programs like compilers, assemblers etc. are stored in a mircocomputer in

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Q. When performing numerical calculations in floating point arithmetic

1. Error may occur due to finite representation of numbers.
2. Error may occur due to rounding.
3. Error may occur due to finite representation of inherently infinite process.

Which of the above are correct?

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Q. The number of registers and flags in 8086 are

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Q. The number of primitive string operations in 8086 is

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Q. If the resolution of a printer is 1200 dpi, the number of dots per square inch is

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Q. Which of these are 16 bit microprocessors?

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Q. In which of the following 8085 instructions are all condition flags except CY affected?

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Q. In 8085

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Q. Assertion (A): Microprocessor 8085 has an 8 bit register called accumulator which stores intermediate answers during a computer operation.

Reason (R): Accumulator can send or receive data.

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Q. Assertion (A): Interfacing means synchronisation of digital information transmission between input output devices and computer.

Reason (R): A computer with higher bit word size executes programs at a faster rate.

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Q. IC 74181 is a 4 bit device.

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Q. Which of the following instructions in 8085 does not belong to data transfer group?

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Q. Assertion (A): A PROM is a user programmable ROM.

Reason (R): After programming PROM behaves like ROM.

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