Step 1: Meaning.
Mass media are technologies that communicate information to a large, dispersed population simultaneously.
Step 2: Types.
\begin{itemize}
\item Print media: Newspapers, magazines, and books.
\item Electronic media: Radio and television.
\item Digital media: Internet, social media, and online news portals.
\end{itemize}
Step 3: Importance.
Mass media informs, educates, entertains, and shapes public opinion. It also acts as a watchdog in democracy.
Final Answer: \[ \boxed{\text{Mass media = print, electronic, and digital communication channels}} \]
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