Mechanical
1. Sorters (same size as a splitter), they use slight amounts of energy, maybe proportional to items being sorted. They can be used to sort one item from the rest at a basic stage and as they advance they get the ability to sort more items.
2. Uncrafter (same size as an assembler), lots ...

Hey I just got into this game, right now I can only play it at school because both of my home computers have 128mb of video memory... I was wondering if there was any way of playing the game with that low of a memory because I get a crash whenever I boot up.