SIM Full Form

SIM Full Form in English | 3 Types of SIM –

In this post, you guys come to know the full form of SIM and also the other concept related to SIM. We hope this information is helpful for you to improve your general knowledge.

SIM Full Form:

SIM full form is a subscriber identity module or subscriber identification module.

It is a smaller or lightweight chip that can easily carry out anywhere without any problem. The SIM is used to make calls all over the world where the subscriber network is available.

SIM is generally used for getting a global system for mobile communication (GSM). Which is portable to use.

Which information the sim card stored.

Sim card contains important information that is required to make a call for communication and it also contains personal data for identifying the person when it’s required to know.

  • Phone number of SIM
  • Address of person
  • Photo of the cardholder
  • Text message
  • Other information

The sim also contains other information like international mobile subscribers identify, temporary information related to a local network, security information, etc.

Dimension SIM Card size:

When the sim card invented that time it was almost the size of a debit card but later as the technology increasing the size of the sim card decreases. Now a day some smartphones use sim cards as micro and nano sim cards which is the latest in the market.

History of SIM Full Form.

In 1991 the first SIM card was made by Munich smart-card maker Giesecke and Devrient. The first sim was initially specified by European Telecommunication Standard Institute.

Dual SIM in phone

Smart phone has the option to use the two sims in the phone. Normally the personal who have different business they used multi phone for maintaining the business.

Does changing sim is changing phone number:

The answer is yes if you change the sim the phone number will change. Every SIM has a different phone number. you want to have the same phone number with a new SIM, it is a different procedure you have to apply.

FAQs Related to SIM Full Form:

What is the full form of CDMA and GSM SIM?

CDMA means Code Division Multiple Access and GSM means a Global system for mobile communication. These are the SIM cards.

 What are the Disadvantages of Dual sim?

·      If your phone has the dual option and using two sims then, sim 1 has a 4G network and sim 2 have the 3G or 2G network. In that case, you cannot use fast internet in SIM 2.
·      Using two sims, the phone battery will decrease fast compare to one sim.
·      You cannot use two sims at the same time.

 How many Types of SIM cards are present?

1.   Standard SIM Card.
·      Generally use in earlier cell phone
2.   Micro SIM Card.
·      Use in Apple iPhone like apple 4, 4s and I pad.
·      Samsung galaxy core phone like galaxy J2 etc.
3.    Nano SIM Card.
·      Used in a new smart phone
·      Apple likes the iPhone 5, iPad Air, and iPad.
·      Samsung galaxy phone like galaxy S6, galaxy note 5, etc
·      Google pixels like pixel, pixel 2, 2XL, Pixel 3, 3XL, Pixel 3a, 3a XL, Pixel 4, 4XL.  

Conclusion of SIM full form:

We hope you guys understand the SIM full form and also the other concepts which are related to the sim card. If this information is helpful to improve your general knowledge in sim. Then let us know in the comment section.


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  1. Pingback: GPRS Full Form | What is GPRS in English? - View Full Form and More

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