The document discusses SIM cards and eSIM technology. It explains that SIM cards store user identity information to connect to mobile networks and have decreased in size over time. eSIM is an embedded SIM that is soldered directly onto a device's motherboard, allowing users to easily change carriers without inserting a new SIM card. While eSIM provides benefits like multi-carrier support and improved water resistance, it also has disadvantages such as inability to retrieve data if the device breaks and lack of interchangeability between devices. The document outlines how eSIM works by uploading a profile after scanning a QR code.

1. WhatisSIMCard?
SIMCardinvention
WhatiseSIM?
eSIMvs.SIMcard
eSIMadvantages
eSIMdisadvantages
Howtoconnect?
References In The Name Of God
Prepared By : Balla Sahdi
University of Garmian – College of Science
Computer Science Department

2. WhatisSIMCard?
SIMCardinvention
WhatiseSIM?
eSIMvs.SIMcard
eSIMadvantages
eSIMdisadvantages
Howtoconnect?
References
SIM standes for Subscriber Identy Module .
SIM card is a piece of plastic that slots into your
smartphone (or mobile phone) that acts as your
unique ID, so that you can connect to a mobile phone
network. This lets you make calls .

3. WhatisSIMCard?
SIMCardinvention
WhatiseSIM?
eSIMvs.SIMcard
eSIMadvantages
eSIMdisadvantages
Howtoconnect?
References
 Then the size of SIM cards was reduced .
For more than 25 years the SIM card has been fundamental in the
development of mobile telecommunications.
- In 1996 mini SIM card was introduced, then micro SIM card in 2003,
after that in 2012 the nano SIM card introduced and got 40x smaller
compared to the full size SIM card .
- eSIM first released in February 2016, which saved %90 space
compared to nano SIM card .
- First SIM card introduced in 1991 about the size of a credit card and were
designed to store information used to identify and authenticate users .

4. WhatisSIMCard?
SIMCardinvention
WhatiseSIM?
eSIMvs.SIMcard
eSIMadvantages
eSIMdisadvantages
Howtoconnect?
References
 eSIM stands for embedded SIM card which is soldered on
the devices motherboard .
 An eSIM will come in the form of an integrated SIM chip
that cannot not be removed from a device .
 The eSIM is sometimes called an eUICC
(embedded Universal Circuit Card) .
 The Google’s Pixel 2 is the first phone to introduce this
technology .

5. WhatisSIMCard?
SIMCardinvention
WhatiseSIM?
eSIMvs.SIMcard
eSIMadvantages
eSIMdisadvantages
Howtoconnect?
References
It is removableIt is not removable
eSIM SIM card
Can use multiple carries Cannot use multiple carries
You have to order a new SIM
card everytime you want to
change carrier
You simply activate the plan
and carrier you like right from
your phone
Comes in various sizes
(Standard,Micro,Nano)
Comes as a part of the phone
or motherboard

6. WhatisSIMCard?
SIMCardinvention
WhatiseSIM?
eSIMvs.SIMcard
eSIMadvantages
eSIMdisadvantages
Howtoconnect?
References
 Since we will not have a slot and therefore, we will not have an
extractor .
 We will not easily lose the eSIM, since it is integrated in your
mobile .
 No specific slot is required unlike SIM cards, and it helps to
improve water and dust resistance .
 You’ll be able to change carriers without having to get a new SIM
.
 eSIM technology supports multiple accounts and switching
between them is super easy .
 On a holiday in a different country, you can connect to a local
area and pay local prices for a day, a week, however long your
trip .

7. WhatisSIMCard?
SIMCardinvention
WhatiseSIM?
eSIMvs.SIMcard
eSIMadvantages
eSIMdisadvantages
Howtoconnect?
References
 When mobile phone breaks, this is not possible in eSIM devices to
retrieve the data such as contacts .
 Users who like to use different mobile phones it is easy for them
with SIM cards to do so. It is not possible with eSIM card as it is
embedded in the motherboard of the mobile phone .
 This could also be a problem if your phone’s running out of
battery and you want to slip your SIM card into a friend’s phone
to check on something or make a call .

8. WhatisSIMCard?
SIMCardinvention
WhatiseSIM?
eSIMvs.SIMcard
eSIMadvantages
eSIMdisadvantages
Howtoconnect?
References
 You need to have a device and a carrier that
supports eSIM in order to use it
 eSIM works by scanning a QR code using your
handset, after that an eSIM profile will be
uploaded on your device, you should activate it .

9. WhatisSIMCard?
SIMCardinvention
WhatiseSIM?
eSIMvs.SIMcard
eSIMadvantages
eSIMdisadvantages
Howtoconnect?
References
 http://www.roamingbuzz.com/what-mobile-devices-that-support-esim-flexiroam/
 https://www.rfwireless-world.com/Terminology/Advantages-and-Disadvantages-of-eSIM.html
 https://www.usmobile.com/blog/esim/
 https://www.digitaltrends.com/mobile/esim-explainer/
 https://www.gsma.com/esim/
 https://www.pocket-lint.com/phones/news/134640-what-is-an-esim-and-how-will-it-change-
connected-devices-for-the-better
 http://www.telecomabc.com/e/esim.html
 https://tele2iot.com/article/evolution-of-sim-cards/