2. Have a high school diploma or its equivalent. You'll need to have a high school diploma or a GED to apply to be a firefighter. Remember that this is the bare minimum educational requirement; it's a tough market, so you can up your chances by continuing your education (find out how in the next section). 3. Have a driver's license.
List of Mac OS versions. Note: The headings on this list indicate the Macintosh System bundle names; the bullet points indicate the version of the System File included in that bundle. This is to make it clearer for people searching for specific bundle versions as opposed to System File versions. Finder File versions are not indicated.
Often abbreviated as OS, an operating system is a powerful, and usually large, program that controls and manages the hardware and other software on a computer. All computers and computer-like devices have operating systems, including your laptop, tablet, desktop, smartphone, smartwatch, router... you name it. Examples of Operating Systems Laptops, tablets, and desktop computers all run operating systems that you've probably heard of. Some examples include versions of Microsoft Windows (like Windows 10, Windows 8, Windows 7, Windows Vista, and Windows XP), Apple's macOS (formerly OS X), iOS, Chrome OS, BlackBerry Tablet OS, and flavors of the open source operating system Linux. Your smartphone runs an operating system too, probably either Apple's iOS or Google's Android.