Upgrade White Macbook to Mojave? I have a technical question for this audience.  I have an older 13" white macbook (model A1342, "Mid-2010") which is currently running MacOS Sierra.  It seems to be running it fine but it is a recently wiped/reinstalled OS and I don't do much with it.  I am wondering if this machine can handle Mojave.  As for specs, it has a 2.4 GHz Intel Core 2 Duo processor, 8 GB RAM, and a 120 GB solid state drive.  Definitely not bad for a machine of that era.  What are your thoughts?  Can this Macbook be upgraded to Mojave, and should it?  I am slightly worried that newer OS's on older machines will dog it down some.
macOS Mojave is only compatible with MacBook models from 2015 or later, i.e. the 12" Retina models. (There were no Macs just branded MacBook released between 2010 and 2015; Mojave supports MacBook Air and MacBook Pro models back to 2012.)

The latest macOS that will run on your MacBook is 10.13 High Sierra. 

Only you can decide whether the performance will be OK for your usage, so I would suggest you try installing High Sierra and see how you get on.