Tagged pointer

Tagged pointers are a way of making computers store data more efficiently. They do this by putting extra information called a "tag" into the pointer, which lets the computer know what type of data is stored in the pointer and how big it is. This extra information helps the computer more quickly access the data because it knows what type of data it is and how big the data is. It's like if you were trying to find a specific type of candy in a big candy store. It would be much easier if you knew exactly what type of candy it was, and how big the package was, so that you could look right away instead of having to search through everything.