By using this site, you agree to the Privacy Policy and Terms of Use.
Accept
Next Gen HeroNext Gen Hero
  • Home
  • Entrepreneurship
  • Fintech
  • News
  • Technology
  • Motivation
Reading: Who Invented The Sim Card?
Share
Notification Show More
Latest News
Apple’s Foray into AR/VR Realm: Mixed Reality Headset
Technology
Serge Creator and Serge Creator Studios Help a Startup Make $400k
Entrepreneurship
Diving into David Rojas’s brain on Identifying Stocks with High Volume and Rotating Float
Entrepreneurship
Work-Life Balance
How to Create a Successful Work-Life Balance as an Entrepreneur?
Entrepreneurship
Anthemis Group, a Venture Capital Firm Specializing in Fintech, Downsizes by 28% through a Restructuring Effort
Anthemis Group, a Venture Capital Firm Specializing in Fintech, Downsizes by 28% through a Restructuring Effort
News
Aa
Next Gen HeroNext Gen Hero
Aa
  • Home
  • Entrepreneurship
  • Fintech
  • News
  • Technology
  • Motivation
Have an existing account? Sign In
Follow US
© 2022 Foxiz News Network. Ruby Design Company. All Rights Reserved.
Next Gen Hero > Blog > Technology > Who Invented The Sim Card?
Technology

Who Invented The Sim Card?

Vanessa Shaw
Last updated: 2021/10/08 at 12:09 PM
Vanessa Shaw 2 years ago
Share
Who Invented The Sim Card?
SHARE

Most questions that are asked about the invention of smartphones usually pertain to the history and invention of the phone but hardly anyone wonders who invented the sim card?

Contents
Sim CardsWho Invented The Sim Card?The Technology Used in Sim CardsAdvancement of SIM Card Over The Years

You cannot use a phone without a sim card, after all. You cannot contact anyone, use the internet, stream movies or even access social media sites without a sim card.

Your mobile phone is basically useless without a sim unless you want to use its calculator or clock. However, nobody buys a phone to use as a calculator. Hence, let us see who invented the sim card.

Sim Cards

You can call a sim card, the soul of a phone since without it you will only have a WiFi connection. The full form of Sim is Subscriber Identification Module and it has a silicon integrated circuit that connects phones to a network that lets you receive and answer calls.

Image source: Wikipedia

The Sim card also stores a lot of important information such as the key of the IMSI number and the number itself, an ICCID which is a serial number and temporary information about the local network, and more.

Who Invented The Sim Card?


The sim card was first invented in 1991 by Giesecke and Devrient in Munich, Germany.

Image source: www.gi-de.com

Giesecke and Devrient were smart card makers. Prior to that, they had created a sim plug-in in the year 1989.

They sold these first-ever sim cards to Radiolinja, a company that was a wireless network operator in Finland.

They began a revolution by inventing the sim cards since Europe started developing GSM protocols around the same time. The GSM protocols extended the user’s freedom. It led people to connect to people all over the world without having to worry about which network they were using.

Source: pexel

The Technology Used in Sim Cards

If you understand the invention of phones and the technology behind them, then you can easily understand how the sim card works. The sim card as mentioned earlier is an integrated circuit and information is stored on this circuit. The data that is stored is a unique IMSI number. The full form of IMSI is International Mobile Subscriber Identity and this number is important because when someone calls you, the call reaches your phone and not somebody else’s phone because of this number.

Advancement of SIM Card Over The Years

Sim cards have changed over the years. They are not what they used to be. Just like the weight and size of phones have evolved, sim cards have evolved over time as well. Sim cards are currently available in four sizes that are mini-sim, full-sized sim, nano sim, and macro sim.

Most people no longer use the full-sized sim card, however, you may have used the other formats and may know them well as well. This is all the information available on who invented the sim card and we hope we have answered your query in this regard satisfactorily. Sim cards are an underappreciated yet extremely valuable invention.

Vanessa Shaw July 2, 2021
Share this Article
Facebook Twitter Email Print
Vanessa Shaw
By Vanessa Shaw
Follow:
Vanessa Shaw is a tech geek who loves getting the latest gadgets and writing about them. She has been writing for many years, and she brings a unique perspective on different topics that are published on Next Gen Hero.
Previous Article How to use a visa gift card on steam How to use Visa gift card on steam?
Next Article How To Keep The Radio On When The Car Is Off? How To Keep The Radio On When The Car Is Off?
Leave a comment

Leave a Reply Cancel reply

Your email address will not be published. Required fields are marked *

Follow US

Facebook Like
Twitter Follow

Popular Posts

What Does Enable Cash Card Mean
Fintech
Which Is Better, Monero or Bitcoin?
Brand Posts Cryptocurrency Fintech
Is Rarible A Good Investment? 
NFT
monitors
What Are The Tools You Need to Succeed as a Day Trader? 
Brand Posts Fintech
A Complete Guide To Earning Free Cardano
Cryptocurrency
How many times can I buy and sell crypto on Robinhood?
Cryptocurrency

You Might Also Like

Apple’s Foray into AR/VR Realm: Mixed Reality Headset

2 days ago

How to Automate your Jet Ski Rental Business

4 months ago

Fridge Stabilizer Price List- India

5 months ago

Is LineageOS Safe?

5 months ago

© 2023. nextgenhero.io. All Rights Reserved.

  • Home
  • About Us
  • Contact Us
  • Privacy Policy

Removed from reading list

Undo
Go to mobile version
Welcome Back!

Sign in to your account

Lost your password?