What is the full form of SIM?

SIM Stands for "Subscriber Identity Module" or "Subscriber Identification Module"

SIM is an incorporated circuit that safely stores the global versatile endorser personality (IMSI). It is a compact memory chip that makes you ready to settle on telephone decisions across the existence where the endorser's organization is accessible. 

SIM is by and large utilized in cell phones that work on the GSM network. It is convenient and you can utilize it with any supporting cell phone. 

What data does a SIM card store? 

The SIM card contains essential data back and forth to your organization and it additionally contains a portion of your own information. 

• Telephone number 
• Address book 
• Organization approval information 
• Instant messages 
• Individual security keys 

A SIM additionally contains its remarkable chronic number (ICCID), International Mobile Subscriber Identity (IMSI), security data, encoding data, brief data identified with the nearby organization, and so forth 

What is SIM Size?

At the point when the principal SIM card was developed, it was near the size of a Visa. However, the freshest norm of a SIM contains a size of 15mm by 12mm. Presently days, some advanced cells utilize miniature and nano-SIM cards which are diverse in size. 

History About SIM:

The main SIM card was made by Munich keen card creator Giesecke and Devrient in 1991. The SIM was at first indicated by the European Telecommunication Standards Institute. 

The contrast between GSM SIM and CDMA SIM

CDMA telephones for the most part don't utilize SIM cards. All things being equal, All data is saved in the handset itself. It very well might be less helpful for the clients since the client can't change the specialist co-op for a similar handset.