Full Forms » Technology Full Forms » SIM Full Form

What is the full form of SIM?

SIM Full Form

The full form of SIM is “Subscriber Identity Module” or “Subscriber Identification Module“. SIM is an integrated circuit that securely stores International Mobile Subscriber Identity (IMSI). It is a portable memory chip that enables you to make phone calls or send text messages around the world where the subscriber’s network is available.

What is SIM card?

SIM card is commonly used in mobile phones which work on the GSM networks (CDMA phones generally do not use SIM cards.). It is portable so that users can use it with any supporting mobile phone. SIM card is a smart card that stores data for GSM cellular telephone customers. Such data includes user identity, phone numbers and locations, network authorization data, personal security keys, address books and archived text messages.

What are the sizes of SIM cards?

SIM
SIM Size

When the first SIM card was invented, it was roughly the size of a credit card. But the latest standard of SIM used to have a size of 15mm x 12mm. These days SIM cards come in three sizes:

  • Standard SIM (15 x 25mm)
  • Micro SIM (12 x 15mm)
  • Nano SIM (8.8 x 12.3mm)

History

The first SIM card was created in 1991 by Munich-based smart card maker Giesecke and Devrient. This SIM was initially specified by the European Telecommunications Standards Institute. Today, SIM cards are ubiquitous, allowing more than 7 billion devices to be connected to cellular networks around the world.

Other full forms of SIM

Full FormCategory
SIMulation / SIMulatorLanguage & Linguistics
Singapore Institute of ManagementUniversities & Institutions
Selected Ion MonitoringChemistry
Space Interferometry MissionSpace Science
Society for Information ManagementProfessional Associations
Systems Insight ManagerSoftware & Applications
Security Information ManagementSecurity
Sudan Interior MissionReligious Organizations
Studio for Interrelated MediaNews & Media
Single Inline MemoryHardware
Servicio de Inteligencia Militar
[Military Intelligence Service]
Security & Defence
Servicio de Información Militar
[Military Information Service]
Security & Defence
Service de sécurité Incendie de Montréal
[Montreal Fire Safety Service]
Departments & Agencies
Scuola Italiana di Montevideo
[Italian School of Montevideo]
Universities & Institutions
Servizio Informazioni Militare
[Military Information Service]
Security & Defence
Super-Resolution MicroscopyTech Terms
Serving In MissionReligion
Source Independent MeasurementElectronics
Spatial Information ManagementSoftware
School of International ManagementInternational Business
Society for Industrial MicrobiologyHuman Genome
Secrets of Internet MillionairesNews & Media
Society for International MinistriesOrganizations
Simple Integration MethodMathematics
Strategy Intervention ModelCommunity
Strategic Instruction ModelGeneral Business
Students In MissionUniversities
Servicio de Información MilitarSpanish
Service Information MessageGeneral Computing
Support Interface ModuleHardware
Solar Irradiance MonitorNASA

Leave a Comment

Your email address will not be published.