If you have always been a Windows user, you probably haven't had many issues when switching to new versions or upgrades of your operating system. With all the hype Apple has built up around their products, you may have recently jumped on the Mac bandwagon. Macs have their own operating system, and it may take you a while to acclimate yourself to the new features and applications. There can also be problems with compatibility when sharing files or documents with non-Mac users. It can often be costly to buy all the software that enables you to convert to Windows compatible files.