[dmach]

T420 would be ok if you can check that it should run docker. That would allow you to use or test many stacks without installs and deploy them to a bigger machine if needed. For a cheap option I recommend the Dell Inspiron 15 3000 Series with Ubuntu preinstalled instead of Windows. It is a Celeron processor and the 14.04 version of Ubuntu but it runs docker great. Also Ubuntu really looks better at the lower resolution which it most of been originally designed for. I got one new for €200.