What is a Thread ?

A stream of conversations. For example, a list of comments on a blog post.

Conversation threading is a feature used by many email clients, bulletin boards, newsgroups, and Internet forums in which the software aids the user by visually grouping messages with their replies. These groups are called a conversationtopic thread, or simply a thread. A discussion forum, e-mail client or news client is said to have a “conversation view”, “threaded topics” or a “threaded mode” if messages can be grouped in this manner.

They can be displayed in a variety of ways. Early messaging systems (and most modern email clients) will automatically include original message text in a reply, making each individual email into its own copy of the entire thread. Software may also arrange them in messages within lists, such as an email inbox. These arrangements can be hierarchical or nested, arranging messages close to their replies in a tree, or they can be linear or flat, displaying all messages in chronological order regardless of reply relationships.



The following messaging software can group and display messages by thread.



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