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.
An operating system (OS) is system software that manages computer hardware and software resources and provides common services for computer programs. The operating system is a component of the system software in a computer system.Application programs usually require an operating system to function.xamples of popular modern operating systems include Android, BlackBerry, BSD, Chrome OS, iOS, Linux, OS X, QNX, Steam OS, Microsoft Windows (and variant Windows Phone), and z/OS.