Computer in the Fantasy world.

Jack had always been a man ahead of his time, a visionary capable of shaping the world around him with his intellect and innovation. Even in this strange world, surrounded by dwarves and elves, he refused to let technological progress stagnate. With the recent advances in medicine and the newfound alliance between the dwarves and elves, Jack set his sights on something that had been nagging at him for a long time—computing.

In his previous world, computers had been the backbone of all scientific endeavors, enabling calculations, simulations, and automation. If he was going to lead these people toward a new era, he needed machines that could store, process, and calculate information at speeds no living being could match. However, there were two major obstacles—electricity and transistors. Without modern circuits, he had to rethink how computation could even function.