Answer:
You can see an estimated battery life time.
Explanation:
To see it simply put your mouse over the battery icon, don't click it and it should give you the life it has left in hours:minutes format.
Answer:
Yes.
Explanation:
Technically it depends on how you define "function". Usable? Yes, required. Turn on? No, not required. If there is no OS you'll get an error saying there is no boot disk/drive.
Well it depends on the topic he is doing. if it is a list then a plain doc with a list of numbers. if he is writing a letter then he should use the letter template.
