Answer: Colored ribbons
If you've ever looked closely at the resistors on the inside of many of your home electronics, you may have their tiny ones doing so Stripes noticed. These ribbons, which are officially referred to as Electronic Color Code, indicate the resistance value of the resistor.
The system was developed in the 1
This system of color-coded tapes has been prevalent for almost a century (and is likely to do so for non-surface mount resistors), and the advent of small surface mount resistances, often barely larger than a grain of rice, has led to an increase in alphanumeric coding instead of banding led method.