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An image server is web server software which specializes in delivering (and often modifying) images. However, not all image servers support HTTP or can be used on web sites. While traditional web servers generally supply clients with static copies of image files, image servers usually perform additional image processing before
Practically it defines how software fetches image tiles from a server. This includes the scale of the image - so a small overview image can be retrieved initially. Zooming and panning are carried out by fetching higher resolution image tiles from server. This means any size of image can be viewed on the Web without downloading it all.
They are commonly used to send message updates or continuous data streams to a browser client and designed to enhance native, cross-browser streaming through a JavaScript API called EventSource, through which a client requests a particular URL in order to receive an event stream.
A content cluster or service node can be formed using a layer 4–7 switch to balance load across a number of servers or a number of web caches within the network. Request routing directs client requests to the content source best able to serve the request.
In software development, frontend refers to the presentation layer that users interact with, while backend involves the data management and processing behind the scenes. In the client–server model , the client is usually considered the frontend, handling user-facing tasks, and the server is the backend, managing data and logic.
The first IRC server, tolsun.oulu.fi, a Sun-3 server on display near the University of Oulu computer centre. IRC (Internet Relay Chat) is a text-based chat system for instant messaging.
Web and mobile apps require a similar set of features on the backend, including notification service, integration with social networks, and cloud storage. [9] [10] Each of these services has its own API that must be individually incorporated into an app, a process that can be time-consuming and complicated for app developers. [11]
Wayland is a communication protocol that specifies the communication between a display server and its clients, as well as a C library implementation of that protocol. [9] A display server using the Wayland protocol is called a Wayland compositor, because it additionally performs the task of a compositing window manager.