I’m guessing old CRTs. I’ve heard they can emit radiation if they aren’t lead lined.

I’ve been working on developing a CPU architecture based around my own variant of lisp called “dollhouse lisp” the big twist is that DHlisp executes code by reducing a syntax tree, so all code is destroyed once it’s been executed. It’s a very elegant solution, but a very difficult implementation. (Especially when it comes to loops and garbage collection.)