are there any updates in its task manager?
In the new version the tabs are hidden by default, showing applications only.
Windows Server 2012
Windows Server 2012 includes a new version of Windows Task Manager together with the old version. In the new version the tabs are hidden by default, showing applications only. 
windows server 2012 r2 datacenter vs windows server 2012 r2 standard UNANSWERABLE what is this windows server 2012? It is the fifth version of the Windows Server operating system by Microsoft, as part of the Windows NT family of operating systems. how was it received among the users? Many business users are sticking with what the have due to lack of exchange.
wiki:19824387
Windows Server 2012 [SEP] Task Manager
Windows Server 2012 includes a new version of Windows Task Manager together with the old version. In the new version the tabs are hidden by default, showing applications only. In the new Processes tab, the processes are displayed in varying shades of yellow, with darker shades representing heavier resource use. Information found in the older versions are now moved to the new Details tab. The Performance tab shows "CPU", "Memory", "Disk", "Wi-Fi" and "Ethernet" graphs. Unlike the Windows 8 version of Task Manager (which looks similar), the "Disk" activity graph is not enabled by default. The CPU tab no longer displays individual graphs for every logical processor on the system by default, although that remains an option.