Online chat in the context of "Text-based"

A chat room, chatroom, or group chat (GC), is an online technology of synchronous conferencing, and occasionally even asynchronous conferencing. Chat rooms comprise technology ranging from real-time online chat and online interaction with strangers (e.g., online forums) to fully immersive graphical social environments. The ability to converse with multiple people in the same conversation differentiates chat rooms from instant messaging programs.

The first chat system was developed by Murray Turoff and for its first by the US government in 1971. Talkomatic, the first public online chat system, was created in 1973 on the PLATO System. Chat rooms gained mainstream popularity with AOL, and many peer-to-peer clients were created to host chat rooms. Further innovations include visual chat rooms, which add graphics to the chat experience.

Internet identity (IID), also online identity, online personality, online persona or internet persona, is a social identity that an Internet user establishes in online communities and websites. It may also be an actively constructed presentation of oneself. Although some people choose to use their real names online, some Internet users prefer to be anonymous, identifying themselves by means of pseudonyms, which reveal varying amounts of personally identifiable information. An online identity may even be determined by a user's relationship to a certain social group they are a part of online. Some can be deceptive about their identity.

In some online contexts, including Internet forums, online chats, and massively multiplayer online role-playing games (MMORPGs), users can represent themselves visually by choosing an avatar, an icon-sized graphic image. Avatars are one way users express their online identity. Through interaction with other users, an established online identity acquires a reputation, which enables other users to decide whether the identity is worthy of trust. Online identities are associated with users through authentication, which typically requires registration and logging in. Some websites also use the user's IP address or tracking cookies to identify users.

Technical support, commonly shortened as tech support, is a form of customer service provided to assist users in resolving problems with products such as consumer electronics and software. Technical support is typically delivered through call centers, online chat, and email services. In addition, many companies operate online forums or discussion boards where customers can provide peer-to-peer assistance, a practice shown to reduce the workload and costs of formal support channels.

A Client is a computer that gets information from another computer called server in the context of client–server model of computer networks. The server is often (but not always) on another computer system, in which case the client accesses the service by way of a network.

A client is a program that, as part of its operation, relies on sending a request to another program or a computer hardware or software that accesses a service made available by a server (which may or may not be located on another computer). For example, web browsers are clients that connect to web servers and retrieve web pages for display. Email clients retrieve email from mail servers. Online chat uses a variety of clients, which vary on the chat protocol being used. Multiplayer video games or online video games may run as a client on each computer. The term "client" may also be applied to computers or devices that run the client software or users that use the client software.

A multi-user dungeon (MUD, /mʌd/), also known as a multi-user dimension or multi-user domain, is a multiplayer real-time virtual world, usually text-based or storyboarded. MUDs combine elements of role-playing games, hack and slash, player versus player, interactive fiction, and online chat. Players can read or view descriptions of rooms, objects, other players, and non-player characters, and perform actions in the virtual world that are typically also described. Players typically interact with each other and the world by typing commands that resemble a natural language, as well as using a character typically called an avatar.

Traditional MUDs implement a role-playing video game set in a fantasy world populated by fictional races and monsters, with players choosing classes in order to gain specific skills or powers. The objective of this sort of game is to slay monsters, explore a fantasy world, complete quests, go on adventures, create a story by roleplaying, and advance the created character. Many MUDs were fashioned around the dice-rolling rules of the Dungeons & Dragons series of games.

A talker is a chat system that people use to talk to each other over the Internet. Dating back to the 1980s, they were a predecessor of instant messaging.A talker is a communication system precursor to MMORPGs and other virtual worlds such as Second Life. Talkers are a form of online virtual worlds in which multiple users are connected at the same time to chat in real-time. People log in to the talkers remotely (usually via Telnet), and have a basic text interface with which to communicate with each other.

The early talkers were similar to MUDs with most of the complex game machinery stripped away, leaving just the communication level commands – hence the name "talker". ew-too was, in fact, a MUD server with the game elements removed.

Talkomatic is an online chat system that enables real-time text communication among small groups. Each participant occupies a dedicated section of the screen, with messages appearing character-by-character as they are typed. Developed in 1973 by Doug Brown and David R. Woolley on the PLATO system at the University of Illinois, Talkomatic is recognized as one of the first multi-user chat systems, predating Internet Relay Chat (IRC) by 15 years and CompuServe's CB Simulator by seven years.

The system played a significant role in the development of online communities and influenced subsequent collaborative software, including Lotus Notes. After the original PLATO implementation was discontinued in the mid-1980s, Brown and Woolley released a web-based version in 2014. Following a temporary shutdown in 2024, the system was revived as an open-source project.

Online dating, also known as internet dating, virtual dating, or mobile app dating, is a method used by people with a goal of searching for and interacting with potential romantic or sexual partners, via the internet. An online dating service is a company that promotes and provides specific mechanisms for the practice of online dating, generally in the form of dedicated websites or software applications accessible on personal computers or mobile devices connected to the internet. A wide variety of unmoderated matchmaking services, most of which are profile-based with various communication functionalities, is offered by such companies.

Online dating services allow users to become "members" by creating a profile and uploading personal information including (but not limited to) age, gender, sexual orientation, location, and appearance. Most services also encourage members to add photos or videos to their profile. Once a profile has been created, members can view the profiles of other members of the service, using the visible profile information to decide whether or not to initiate contact. Most services offer digital messaging, while others provide additional services such as webcasts, online chat, telephone chat (VoIP), and message boards. Members can constrain their interactions to the online space, or they can arrange a date to meet in person.