Answer:
An operating system is installed on a disk drive. An operating system is software and a disk drive is a storage medium. To put it very simply, a disk drive is what an operating system (or other data) is stored on.
Explanation:
g00gled it
True..they do take great photography..
In technicality, humans can work healthily 14-15 hours a day, 365 days a year. I subtracted the hours of the day needed for sleep and feeding.
You already wrote the answer. It is Additions