Answer:
just refresh
Explanation:
you did level up i just checked, it just hasnt updated for you
Two different Operating Systems are
Windows 7
LINUX
Explanation:
- Windows is an Operating System which was released by Microsoft to be used on Personal Computers.
- They are used to manage software and perform various tasks.
- LINUX is another type of operating system that is used on Super computers
- Linux has been used in homes and organisation desktops in a great number.
- It is used for great number of computing embedded tasks.
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.
maintenance is the answer
