Answer: Snooping is not a crime, although it is frowned upon. There are exceptions to this though. 1. The file is in a lock box or other file protecting bin 2. The file is classified, or disclosed by the government. 3. You sign a contract stating specifically that you will not view anything other than what you sign for. 4. It is legally protected and, if, or patented with viewing rights reserved.
My guess is that you were just asking if snooping on something personal and not in anyway. i.e an online diary. No that is not illegal, but is not recommended if you ever want to get permission to use the computer again.
Answer: It would most likely unchanged. Perhaps we would be a bit more advanced, but to a huge degree.
Merely having a computer does not tell you how that computer works, or how that computer was built. It might be possible for them to reverse engineer the computer, but they would lack the fabrication techniques to reproduce it. In the best case, it might give them ideas that would help them to develop these techniques faster than they would originally.
However, realize that we have already reached the physical limits of silicone on processors years ago. Clock speeds have not increased at all since the Pentium 4 era, years ago. Instead manufacturers have changed strategies - focusing instead of reducing power consumption, reducing memory bottlenecks and increasing the number of processing cores on a single die. Having multiple cores does not theoretically increase the speed of your common single threaded application. It only allows you to have more applications running at once.
Answer: The general answer is "no, the oxygen in the vehicle compartment is unaffected by the air conditioning unit". The vehicle is not air-tight so while there may be a small decrease in oxygen content, sufficient oxygen for normal occupant breathing will remain.
Answer: It may help to step back and think about what blood does, and why it would matter that the blood is rich in oxygen (or CO2).Among other things, blood acts to transport oxygen and CO2 to or from tissues and organs, right? In order for the blood cells to carry them, the binding site on the blood cell would have to be open.So, if the blood is oxygen rich, that means that those blood cells are carrying as much oxygen as they can...there is simply no room for any CO2 to bind to the cells.So the reason it never mixes is because the oxygen is hogging the blood cells binding sites (or vice versa).