I never thought text messaging would become as popular as it has, but government and governmental organizations use it as a form of communication between colleagues
Really? I work in government and its frowned upon to text at work! How did text messaging start?
I'm not completely sure how it started, but it was originally referred to as SMS, of Short Message Service
I didn't know that? Do you know why it is called that?
I don't, but it's actually grown beyond that to include multimedia messages or MMS, which contain images and videos. 
That's very true but I wonder if it will become obsolute with all of the messaging apps like Facebook Messanger. 
I doubt it becuase texting makes a quick and easy way to communicate with friends and colleagues.
That's true but facebook can be just as fast and there are other apps like Telegram and WhatsApp being used by comanies.