Queue vs. Topic — What's the Difference?

To arrange or line up in a queue.

In publish-subscribe systems, a node in the network that distributes messages to subscribers.

A list in computer data structures that supports operations like enqueue and dequeue.

To create a topic for discussion or broadcasting information.

A waiting line or sequence.

A division within literature or documentation that discusses a particular point.

In messaging systems, a buffer where messages sent by one participant are held until processed by another.

A subject or theme of discussion.

A line or sequence of people or vehicles awaiting their turn to be attended to or to proceed.

A category or branch of interest within a broader area.

A list of data items, commands, etc., stored so as to be retrievable in a definite order, usually the order of insertion.

The subject of a speech, essay, thesis, or discourse.

A plait of hair worn at the back.

A subject of discussion or conversation.

Take one's place in a queue

A subdivision of a theme, thesis, or outline.

Arrange in a queue

(Linguistics) A word or phrase in a sentence, usually providing information from previous discourse or shared knowledge, that the rest of the sentence elaborates or comments on. Also called theme.

A line of waiting people or vehicles.

Topical

A sequence of stored data or programs awaiting processing.

Subject; theme; a category or general area of interest.

A data structure from which the first item that can be retrieved is the one stored earliest.

(Internet) Discussion thread.

A long braid of hair worn hanging down the back of the neck; a pigtail.

(music) A musical sign intended to suggest a particular style or genre.

To get in line

(obsolete) An argument or reason.

To place in a sequence

An external local application or remedy, such as a plaster, a blister, etc.

To braid or twist (hair) into a queue.

One of the various general forms of argument employed in probable as distinguished from demonstrative reasoning, - denominated by Aristotle to`poi (literally, places), as being the places or sources from which arguments may be derived, or to which they may be referred; also, a prepared form of argument, applicable to a great variety of cases, with a supply of which the ancient rhetoricians and orators provided themselves; a commonplace of argument or oratory.

A line of people, vehicles or other objects, in which one at the front end is dealt with first, the one behind is dealt with next, and so on, and which newcomers join at the opposite end (the back).

An argument or reason.

A waiting list or other means of organizing people or objects into a first-come-first-served order.

The subject of any distinct portion of a discourse, or argument, or literary composition; also, the general or main subject of the whole; a matter treated of; a subject, as of conversation or of thought; a matter; a point; a head.

(computing) A data structure in which objects are added to one end, called the tail, and removed from the other, called the head (in the case of a FIFO queue). The term can also refer to a LIFO queue or stack where these ends coincide.

An external local application or remedy, as a plaster, a blister, etc.

(heraldry) An animal's tail.

Topical.

A men's hairstyle with a braid or ponytail at the back of the head, such as that worn by men in Imperial China.

The subject matter of a conversation or discussion;

(intransitive) To put oneself or itself at the end of a waiting line.

Some situation or event that is thought about;

(intransitive) To arrange themselves into a physical waiting queue.

To add to a queue data structure.

To fasten the hair into a queue.

A tail-like appendage of hair; a pigtail.

To fasten, as hair, in a queue.

A line of people or vehicles waiting for something

(information processing) an ordered list of tasks to be performed or messages to be transmitted

A braid of hair at the back of the head

Form a queue, form a line, stand in line;

Yes, in a topic, the same message can be broadcast and received by multiple subscribers simultaneously.

A topic is a distribution point in publish-subscribe systems where messages are broadcast to all subscribers.

Queues are commonly used in applications requiring sequential processing, like order processing systems.

A queue ensures that each message is delivered and processed by one consumer, typically using a locking mechanism.

Topics are suitable for scenarios where information needs to be disseminated broadly, such as in event notifications.

A queue is a data structure or messaging system where elements or messages are processed in the order they are received.

Topics are generally better for real-time communication across multiple recipients, whereas queues are better for direct, ordered task completions.

Topics handle multiple subscribers by allowing them to choose what type of messages they receive based on subscription parameters.

Queues allow dynamic management of consumer processes, accommodating varying workload by adding or removing consumers.

Queue provide linear structure for storing data where elements are processed in a FIFO manner.