What chips? (Terminator: Resistance)

More on the story will appear on a weapon that you can use them to upgrade

The main chips don't sell and don't waste it. Upgrade weapons in the form of not difficult puzzles and don't know in advance which chip you will finally be useful, what would it worked.

You can hack the computers and guns with spending chips.

Three chips at upgrading the arms are connected to circuit elements on the right and left of the chip.