A+ Certification/Exam Objectives/Operating Systems

Identifying operating systems
Although the examination focuses almost exclusively on Microsoft's Windows operating system (OS), one should also know about differences among other operating systems.

Microsoft operating systems: Apple operating systems:
 * Legacy Windows OSes (need only to know upgrade paths):
 * Windows 95
 * Windows 98
 * Windows ME
 * Windows NT 4.0
 * Windows 2000
 * Windows XP
 * Current Windows OSes (focus on these for the new exam):
 * Windows Vista
 * Windows 7
 * Windows 8
 * Windows 10
 * Mac OS X (which is based on Unix-like system-exam question)
 * iOS (for iPhone, iPad, iPod Touch)

Unix-like operating systems:
 * BSD (and derivations like FreeBSD, OpenBSD, and NetBSD)
 * NextStep
 * GNU/Linux
 * Google Android