Microsoft Windows Server 2012 Editions …

Windows Server 2012 comes in four editions

Edition	Intent	Major feature	Licensing	Clients	List price
Datacenter	Highly virtualized environments	Unlimited virtual instance rights	Processor x 2	Per CAL	$4,809 per 2 procs
Standard	Little virtualization, low density	Two virtual instances	Processor x 2	Per CAL	$882per 2 procs
Essentials	Small business	Simple administration, no virtualization rights	Per Server	25 accounts	$425
Foundation	Entry level, economy server	General purpose server, no virtualization rights	Per Server	15 accounts	OEM only