Basic System Requirement
What is the required specification of server?
Normally we recommend to have at least one application server and one database server on Windows base OS. But for amounts of users you may have to prepare more clustering servers. On the other hand, may use only one server for both application and database if there is only about 5-20 users or few traffic. The minimum required CPU is Intel Xeon 2.0 GHz up or compatible and 4 GB of RAM.
What is the required specification of workstation?
The minimum required is Pentium 4 (or compatible) 1.0GHz up, RAM 1 GB, with Internet explorer 10.0 and Chrome 56 or later.