A bacterium is named by two things you can see down a microscope. One is its shape. The other is the pattern its cells fall into after they split. The pattern is not decided for them. It comes out of three simple choices: how many planes the cell divides in, and whether the daughters let go. Set those choices, then press Divide and watch the name build itself.
One cell
1000× oil-immersion field · one coccus is about 1 µm across, one rod about 2 µm long