Losing all computers wouldn't mean no electricity. Although most chemical/power plants these days are computerised, as a chemical engineer I (along with many others) would easily be able to design and build basic power, refining and chemicals manufacturing plants without anything beyond a few small electric circuits.
The power and chemical industries got along just fine for fifty years without any serious computing power around, so I'm sure we could cope again if we had to (as long as we can still integrate without using MatLab)
Losing all computers wouldn't mean no electricity. Although most chemical/power plants these days are computerised, as a chemical engineer I (along with many others) would easily be able to design and build basic power, refining and chemicals manufacturing plants without anything beyond a few small electric circuits. The power and chemical industries got along just fine for fifty years without any serious computing power around, so I'm sure we could cope again if we had to (as long as we can still integrate without using MatLab)