That old computer running NetBSD probably also isn't running 24/7, making the environmental impact that much lower.
The comparison probably needs to be: Running that old NetBSD machine for a few hours a day, worst case about 40 while I work vs. producing an running a brand new laptop.
If we're talking desktops, then many older machines have 2-300W PSUs, not even enough to power a modern graphics card (I know, an Nvidia card isn't running 600W all the time).
The comparison probably needs to be: Running that old NetBSD machine for a few hours a day, worst case about 40 while I work vs. producing an running a brand new laptop.
If we're talking desktops, then many older machines have 2-300W PSUs, not even enough to power a modern graphics card (I know, an Nvidia card isn't running 600W all the time).