You may have seen the lines and cuts on the Sim card. If not, then pull out your sim card and check. Do you know why these lines and cuts are present ?
Full form of SIM card :
Subscriber Identification Module
Sim card was first invented by Giesecke and Devrient in 1991 at Munich. It was the biggest achievement in terms of technology.
Let us discuss the use of lines and cuts on Sim card :
First, I thought these lines are just for the designing purpose. After that, I searched and find an interesting fact that is,
The lines are visible on the golden part of the sim card and are usually in the middle section.
When Sim cards were launched, people get confused as which side they have to insert. So, the company put a small cut on the sim to remove that confusion.
The lines are made up of semiconductor device and has a great use. These lines divide the sim card into different segments and also separates the different electrical signals. Your contacts get saved on this segments. Along with this, due to the perfect coordination among different layers, Antenna works with it because of which your smart phone gets connected with accurate network.