Microprocessor
The reason for the presence of ALE pin in 8085, but not in 6800 is that

 None
 8085 has 5 interrupts lines, whereas 6800 has only two
 8085 uses I/O mapped I/O, whereas 6800 uses memory mapped I/O
 8085 has multiplexed bus, whereas 6800 does not have

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Microprocessor
When .9432 E – 4 is subtracted from .5452 E – 3 in normalized floating point mode

.5452 E – 3 is changed to 5.452 E – 4 but .9432 E – 4 is not changed
None of the numbers is changed
Both Ihe numbers are changed and their exponents are, made equal to -5
.9432 E – 4 is changed to .09432 E – 3 and .5452 E – 3 is not changed

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