Here is a short overview of my current hardware and the used operating systems.
main server system:
- dual AMD Opteron OSA2374 QuadCore 2,2GHz
 - NVidia Quadro NVS300 (GT218) with dual monitor
 - hardware raid, 4x Western Digital 500GB as Raid-5
 - RAM: 16 GB
 - TV card, Tevii S470, DVB-S2, PCIe (chip CX23885)
 - operating system: openSUSE Leap v15.2
 - several virtual machines with VirtualBox
 - view details
 
living room system:
- primarily for watching TV with MythTV
 - Intel ATOM with NVidia GPU (GT218), ASUS AT5IONT-I
 - silent, SSD, DVD
 - operating system: openSUSE Leap v15.1
 
TabletPC:
- Microsoft Surface 6 pro
 - Bluetooth keyboard
 - heiyo pen
 - Windows 10
 
Notebook 1
- Lenovo ThinkPad R60
 - SSD upgrade, 128 GB, S-ATA
 - 2 GB RAM
 - ATI X1400, 128MB
 - docking station
 - Linux, openSUSE Leap v15.2
 - more details in the ThinkPad-Wiki
 - blog post for this topic
 
Notebook 2
- DELL Latitude D830
 - see here
 
Network equipement
- router: AVM Fritz!BOX 7170
 - w-lan: TP-Link Archer C7 v2
 - switch: TP-Link TL-SG22224WEB
 - printer: Kyocera FS-1010 with NIC IB-21E
 - printer; Kyocera FS-C5150DN
 
old hardware:
TabletPC
- Motion Computing J3500
 - a real PC running Windows 7 Pro for hard work
 - details
 - had a bubble display problem, see here