SMS stands for Short Message Service and is also commonly referred to as a "text message". With a SMS, you can send a message of up to 160 characters to another device. Longer messages will automatically be split up into several parts. Most cell phones support this type of text messaging.We use this type of messaging to tell someone of some good or bad news which is urgent and used to talk to those people who live away from the home for example they live in another city or country.We can talk to them by sending them messages to sometimes ask them for some thing or someone or just for asking them that when will they return to the city or country.What is happening or is some thing happening.