Originally Posted by Habanero Monk
I am speaking more to the day to day computer based file copy.
After nearly 20 years as a computer programmer, I can tell you that the answer is YES.
It's not even a question.
If it weren't possible, then your computer wouldn't even boot after reformatting off of a Windows Disc or Ghost reimage because the binary would be all corrupted and flip/flopped.
That said, is it possible for hardware and software to malfunction during the copy process? also YES!
This is why Banks, NASA, and Google run many-many-many computers each an exact copy of the other, in case one fails, the others keep going flawlessly as if nothing happened, and an admin alert is sent out to have them replace the 1 or 2 broken machines.
But under normal working conditions (which is like 99.99999999% of the time), it will be flawless every time with just A to B, and no other backup systems in place.
If you woke up each morning and had a totally-unexpected Bank Account Balance because files and emails didn't copy around correctly, the whole world would collapse into flesh eating zombies within less than 3 days!