Personal Computer -or- Politically Correct
For the definition of a PC as a noun for a personal computer, please see personal computer.
PC as "Politically Correct" is an adjective that refers to language one uses when trying to minimize offensive remarks about someone's gender, race, disability, or other form of identity. In other words, it's a way of censoring your behavior or speech so you don't offend anyone. The term "politically incorrect" (unPC) refers to language or ideas that may specifically cause offense to someone. Now the term has morphed again into what's known as "post-PC" which suggests that because the Internet facilitates open communication worldwide and because racial epithets, for example, are thrown around freely without much fuss, "we are in a post-PC era."
Online jargon, also known as text message shorthand, used primarily in texting, online chat, instant messaging, email, blogs, and newsgroup postings, these types of abbreviations are also referred to as chat acronyms.
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NetLingo Classification: Acronyms and Text Message