The Adders and Subtractors Trainer NV6554 is an elite training system for the digital
laboratories. It is useful in understanding the working of Binary adders and subtractors. This trainer describes Half Adder, Full Adder (using two half adders) and Half Subtractor. The training system is designed in such a way that for performing any experiment, students have to connect the links by patch cords, so it is easy to
understand the inputs and outputs of adders and subtractors. Attractive input and output sections are provided on trainer in such a manner so that multiple experiments can be performed simultaneously.