Example:
You have a very small serial number on the bottom of your Laptop that you need, to search for device drivers online.
Normally you would copy the serial number with pen/pencil and paper.
Question: How to magnify, read or save anything
With any smart phone just simply take a picture.
Answer: Simply take a picture of it with your smart phone. You can now zoom into the picture to read any small text or save it to be used later.
