During the later part of the 19th century, it was believed that a sound of change affected the whole of a language simultaneously: one sound system w… - David Crystal

Micro computers used as word processors complement the audio facilities, enabling the interactive teaching of all four language skills reading, listening, speaking and writing.

I believe that any form of writing exercise is good for you. I also believe that any form of tuition which helps develop your awareness of the different properties, styles, and effects of writing is good for you. It helps you become a better reader, more sensitive to nuance, and a better writer, more sensitive to audience. Texting language is no different from other innovative forms of written expression that have emerged in the past. It is a type of language whose communicative strengths and weaknesses need to be appreciated.

The main metaphor that is used to explain the historical relationship is that of the language family or family tree.