Microprocessor
At the beginning of a fetch cycle, the contents of the program counter are

 transferred to memory address register .
 transferred to address bus.
 incremented by one.
 transferred to memory data register.

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

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

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