The Question : What do you understand by a newsgroup? How is it different from a blog?
Solution for the question :
A newsgroup is an Internet-based discussion group. It is organized around a particular topic, eg cyber safety. People can post messages on the group regarding the topic. Anyone can join a discussion group A blog is more like a website where an individual or group of people write about anything that interests them eg, sports, culture etc. It is usually owned by an individual and we can only post comments on a blog if it is allowed to do so.
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