I own 2 Dell 790 computers. They were made in 2011 but are still up to my needs.They may be old but they work for me. I must admit having two computers networked together and sharing the same keyboard and mouse using synergy does help.
cat /proc/cpuinfo | grep 'model name' | uniq model name : Intel(R) Core(TM) i7-2600 CPU @ 3.40GHz
I also have a Samsung s7 phone. The battery is getting old and needs recharged often. But the phone itself is quick and responsive.My raspberry Pi selection is 3 Pi Zeros which I don't really need any more and a Pi 3 Model B Plus Rev 1.3
pi@raspberrypi:/$ cat /sys/firmware/devicetree/base/model;echo Raspberry Pi 3 Model B Plus Rev 1.3
Find Out about the hardware on your computer is