retrieve information about a computer

PS> get-wmiobject -class win32_operatingsystem


SystemDirectory : C:\LINDOWS\system32 <---- where drivers are stored
Organization : Regional Farmstay Inc. <---- same as Company
BuildNumber : 2600 <---- Service Pack 2
RegisteredUser : Jose Clinton <---- same as User Name
SerialNumber : 55274-642-3428963-23367 <---- actual is alphanumeric
Version : 5.1.2600 <---- Windows XP SP2