Under my reloading bench, in a box, wrapped in canvas, are two (2) Radio Shack TRS-80 Model 100 laptop computers. They still work.
Radio Shack had a somewhat tarnished reputation when it came to computers but the Model 100 was the first laptop on the market. I remember when President Reagan met with Gorbachev in Iceland. I saw two reporters sitting in a hallway, busily typing their stories on their M-100 laptops. The computer had a ‘fair’ word processor and a built-in modem that transmitted data at a whopping 300 baud. All that and it would run almost all day on four AA-batteries!
After the EMP attack you will be a computer god!