8086 Microprocessor MCQs

M

Mr. Dubey • 51.43K Points
Coach

Q 31. Access time is faster for _________.

(A) rom
(B) sram
(C) dram
(D) eram
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Mr. Dubey • 51.43K Points
Coach

Q 32. Address line for TRAP is?

(A) 0023h
(B) 0024h
(C) 0033h
(D) 0099h
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Mr. Dubey • 51.43K Points
Coach

Q 33. In 8086 microprocessor one of the following statements is not true?

(A) coprocessor is interfaced in max mode.
(B) coprocessor is interfaced in min mode.
(C) i /o can be interfaced in max / min mode.
(D) supports pipelining
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Mr. Dubey • 51.43K Points
Coach

Q 34. In 8086 microprocessor the following has the highest priority among all type interrupts?

(A) nmi
(B) div 0
(C) type 255
(D) over flow
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Mr. Dubey • 51.43K Points
Coach

Q 35. In 8086 the overflow flag is set when _____________.

(A) the sum is more than 16 bits.
(B) signed numbers go out of their range after an arithmetic operation.
(C) carry and sign flags are set.
(D) subtraction
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Mr. Dubey • 51.43K Points
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Q 36. In 8086, Example for Non maskable interrupts are ________.

(A) trap
(B) rst6.5
(C) intr
(D) rst6.6
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Mr. Dubey • 51.43K Points
Coach

Q 37. To interface memory with the microprocessor, connect register the lines of the address bus must be added to address lines of the chip.

(A) single
(B) memory
(C) multiple
(D) triple
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Mr. Dubey • 51.43K Points
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Q 38. Microprocessor provides signal like to indicate the read operatio

(A) low
(B) mcmw
(C) mcmr
(D) mcmwr
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Mr. Dubey • 51.43K Points
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Q 39. The of the memory chip will identify and select the register for the EPROM

(A) internal decoder
(B) external decoder
(C) address decoder
(D) data decoder
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Mr. Dubey • 51.43K Points
Coach

Q 40. The Microprocessor places 16 bit address on the add lines from that address by register should be selected

(A) address
(B) one
(C) two
(D) three
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