Answer:
They are firstly being bundled with the software, like paint, PowerPoint, word, etc. However, once you draw them and save as an image file, the standard symbols become the part of the image which can be stored as a png file or a jpeg file, and there are various other image formats that you can make use of. And hence, they are some sort of byte arrays stored at the same location where the image is being stored.
Step-by-step explanation:
The answer is self explanatory.