Exercise: Microprocessors

Questions for: Microprocessors

The organisatioion of Intel memory chip 127256 is
A:
32 K x 8
B:
16 K x 8
C:
32 K x 4
D:
16 K x 4
Answer: A
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In 8085 the data is stored in the stack on
A:
First in First Out basis
B:
Last in First Out basis
C:
First in Last Out basis
D:
Last in Last Out basis
Answer: B
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If quadratic equation x2 - 1000x + 25 = 0 is solved using floating point arithmetic with 4 digit mantissa, the roots are
A:
.1000 E 4 and .1000 E 4 respectively
B:
.0000 E 4 and .0000 E 4 respectively
C:
.1000 E 4 and .0000 E 4 respectively
D:
None of the above
Answer: C
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In which of the following logical group instructions of 8085 do the contents of accumulator remain unchanged?
A:
ORA r
B:
ORA M
C:
ORI data
D:
CMP r
Answer: D
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The read and write cycle times of cache memory are in the range of
A:
1 - 3 ns
B:
25 ns - 45 ns
C:
200 ns - 300 ns
D:
1 μs
Answer: B
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