1 Become a volunteer fireman. 2  You will still have to meet the basic requirements of being a fireman, but won't be compensated for your efforts. 3  If you're already doing this, it will make it easier for you to get hired as a fireman, but if this is your career goal, you should want to be a salaried employee.
Computers using a Windows operating system have a Windows flag/Start icon in the lower left corner of the screen. Computers using a Macintosh operating system have an Apple icon in the upper left corner of the computer screen.
Best Answer: First of all, Hi! OS stand for Operating System. Today most of the computer use windows. Windows has a lot of version. Today the most used are Windows XP and Windows Vista. If you don't know which one choose, I recommend you Windows XP or Windows Vista, because it's the most popular and easy to use.