Network of 3 Computers, depending on the setup
  * Lenovo Thinkpad
  * Rasperry Pi 2
  * Raspberry Pi 2

New computer (status 8.2.17):

Pokini Server with:
Intel Core i7-5775C 8 x 3.3 GHz Processor
8 GB RAM
Quadro M4000 Graphic card
running
Ubuntu 16.04