Dear Joeten and tristar,
Thank You so much for your assistance.
Tristar// You query was also useful.
Finally, i found the following wmi query:
select SMS_R_System.Name, SMS_G_System_OPERATING_SYSTEM.Description, SMS_R_System.LastLogonUserName, SMS_G_System_OPERATING_SYSTEM.BuildNumber, SMS_G_System_OPERATING_SYSTEM.Version, SMS_R_System.BuildExt, SMS_G_System_OPERATING_SYSTEM.Caption, SMS_G_System_OPERATING_SYSTEM.InstallDate, SMS_G_System_OPERATING_SYSTEM.LastBootUpTime, SMS_G_System_COMPUTER_SYSTEM.Model, SMS_G_System_X86_PC_MEMORY.TotalPhysicalMemory from SMS_R_System inner join SMS_G_System_OPERATING_SYSTEM on SMS_G_System_OPERATING_SYSTEM.ResourceID = SMS_R_System.ResourceId inner join SMS_G_System_COMPUTER_SYSTEM on SMS_G_System_COMPUTER_SYSTEM.ResourceID = SMS_R_System.ResourceId inner join SMS_G_System_X86_PC_MEMORY on SMS_G_System_X86_PC_MEMORY.ResourceID = SMS_R_System.ResourceId order by SMS_G_System_OPERATING_SYSTEM.BuildNumber DESC
For the above query we need to prompt for asking collection, then i get the output as in the attachment.
Thank you all