What is the abbreviation of short message called, what is his concept, what is the significance, what is the meaning?

Mainland China said SMS, Hong Kong said SMS, Taiwan said SMS (English: Short message service, abbreviated as SMS), is a kind of cell phone service, the user through the cell phone or other telecommunications terminals to send or receive text or digital information directly, the user can receive and send SMS each time the number of characters by the English "short message service" translated from the "short message service". It is translated from English "short message service". It is available on most cell phones. Sometimes called messages, short messages, SMS, text messages, this service also has many English colloquialisms such as "SMSes, text messages, messages or even texts and txts". SMSes were originally designed for GSM phones, but are now available on almost any phone system, such as 3G phones.