GSM stands for Global System for Mobile communications. It is a digital cellular telecommunications system that was first introduced in Europe in the 1980s. GSM is a standard used by most mobile phone networks around the world to enable communication and wireless connectivity. It operates on various frequency bands in the 900 MHz and 1800 MHz or 850 MHz and 1900 MHz ranges.
GSM is a technology that allows mobile phones to connect to mobile networks and make voice calls, send and receive text messages, and access data services. It utilizes a combination of time division multiple access (TDMA) and frequency division multiple access (FDMA) techniques to allow multiple users to share the same frequency. This enables many users to access the network simultaneously.
One of the key advantages of GSM is its international compatibility. Since GSM is a widely accepted standard, GSM-compatible phones can be used in numerous countries around the world. This has greatly facilitated global communication and roaming capabilities for users.
GSM also offers various data services, including General Packet Radio Service (GPRS) and Enhanced Data rates for GSM Evolution (EDGE), which allow for internet access and faster data transfer rates. These technologies have paved the way for the development of 2G, 3G, and 4G networks and services.
In summary, GSM is a widely adopted digital cellular telecommunications system that allows mobile phones to connect to mobile networks, make calls, send messages, and access data services. It provides international compatibility, multiple user access, and has evolved to support advanced data technologies.
