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.
communicate with friends, family and colleagues, including in contexts where a call would be impolite or inappropriate (e.g., calling very late at night or when one knows the other person is busy with family or work activities). Like e-mail and voicemail, and unlike calls (in which the caller hopes to speak directly with the recipient), texting does not require the caller and recipient to both be free at the same moment; this permits communication even between busy individuals. Text messages can also be used to interact
containing digital images, videos, and sound content, as well as ideograms known as emoji (happy faces, sad faces, and other icons).
As of 2017, text messages are used by youth and adults for personal, family, business and social purposes. Governmental and non-governmental organizations use text messaging for communication between colleagues. In the 2010s, the sending of short informal messages has become an accepted part of many cultures, as happened earlier with emailing. This makes texting a quick and easy way to