Chat room

The term chat room, or chatroom, is primarily used to describe any form of synchronous conferencing, occasionally even asynchronous conferencing. The term can thus mean any technology ranging from real-time online chat and online interaction with strangers (e.g., online forums) to fully immersive graphical social environments.

The primary use of a chat room is to share information via text with a group of other users. Generally speaking, the ability to converse with multiple people in the same conversation differentiates chat rooms from instant messaging programs, which are more typically designed for one-to-one communication. The users in a particular chat room are generally connected via a shared interest or other similar connection, and chat rooms exist catering for a wide range of subjects. New technology has enabled the use of file sharing and webcam to be included in some programs. This can be considered a chat room.

History

The first online chat system was called Talkomatic, created by Doug Brown and David R. Woolley in 1973 on the PLATO System at the University of Illinois. It offered several channels, each of which could accommodate up to five people, with messages appearing on all users' screens character-by-character as they were typed. Talkomatic was very popular among PLATO users into the mid-1980s. In 2014 Brown and Woolley released a web-based version of Talkomatic.

Chatroom (film)

Chatroom is a 2010 British drama thriller film directed by Hideo Nakata about five teenagers who meet on the internet and encourage each other's bad behaviour. The film is based on the play Chatroom by Enda Walsh.

Plot

William Collins (Aaron Johnson) is a depressed teen recovering from self-harm and regularly goes online to chat rooms. One day, he decides to open a chat room himself and calls it "Chelsea Teens!" and where he meets Jim (Matthew Beard), another kid; Eva (Imogen Poots), a model; Emily (Hannah Murray), a goody two-shoes; and Mo (Daniel Kaluuya), a normal kid. There is no real subject matter in "Chelsea Teens!" which instead focuses on the lives of each teen as they talk. Even though they only really communicate through text, the film depicts them in an old hotel-like room and actually having contact.

Developer

Developer may refer to:

See also

Real estate development

Real estate development, or property development, is a multifaceted business process, encompassing activities that range from the renovation and re-lease of existing buildings to the purchase of raw land and the sale of developed land or parcels to others. Real estate developers are the people and companies who coordinate all of these activities, converting ideas from paper to real property. Real estate development is different from construction, although many developers also manage the construction process.

Developers buy land, finance real estate deals, build or have builders build projects, create, imagine, control and orchestrate the process of development from the beginning to end. Developers usually take the greatest risk in the creation or renovation of real estate—and receive the greatest rewards. Typically, developers purchase a tract of land, determine the marketing of the property, develop the building program and design, obtain the necessary public approval and financing, build the structures, and rent out, manage, and ultimately sell it. Sometimes property developers will only undertake part of the process. For example, some developers source a property get the plans and permits approved before on selling the property with the plans and permits to a builder at a premium price. Alternatively, a developer that is also a builder may purchase a property with the plans and permits in place so that they do not have the risk of failing to obtain planning approval and can start construction on the development immediately. Developers work with many different counterparts along each step of this process, including architects, city planners, engineers, surveyors, inspectors, contractors, leasing agents and more. In the Town and Country Planning context in the United Kingdom, 'development' is defined in the Town and Country Planning Act 1990 s55.

Photographic developer

In the processing of photographic films, plates or papers, the photographic developer (or just developer) is one or more chemicals that convert the latent image to a visible image. Developing agents achieve this conversion by reducing the silver halides, which are pale-colored, into silver metal, which is black (when a fine particle). The conversion occurs within the gelatine matrix. The special feature of photography is that the developer only acts on those particles of silver halides that have been exposed to light. Generally, the longer a developer is allowed to work, the darker the image.

Chemical composition of developers

For black-and-white photography, the developer typically consists of a mixture of chemical compounds prepared as an aqueous solution. Three main components of this mixture are: