A report on Client (computing)

A computer network diagram of client computers communicating with a server computer via the Internet

Piece of computer hardware or software that accesses a service made available by a server as part of the client–server model of computer networks.

- Client (computing)

8 related topics with Alpha

A computer network diagram of clients communicating with a server via the Internet

Client–server model

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Client-server model is a distributed application structure that partitions tasks or workloads between the providers of a resource or service, called servers, and service requesters, called clients.

Computer network

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Set of computers sharing resources located on or provided by network nodes.

Fiber optic cables are used to transmit light from one computer/network node to another

2007 map showing submarine optical fiber telecommunication cables around the world.

Computers are very often connected to networks using wireless links

An ATM network interface in the form of an accessory card. A lot of network interfaces are built-in.

A typical home or small office router showing the ADSL telephone line and Ethernet network cable connections

The TCP/IP model and its relation to common protocols used at different layers of the model.

Message flows between two devices (A-B) at the four layers of the TCP/IP model in the presence of a router (R). Red flows are effective communication paths, black paths are across the actual network links.

Routing calculates good paths through a network for information to take. For example, from node 1 to node 6 the best routes are likely to be 1-8-7-6, 1-8-10-6 or 1-9-10-6, as these are the shortest routes.

Partial map of the Internet, based on the January 15, 2005 data found on opte.org . Each line is drawn between two nodes, representing two IP addresses. The length of the lines is indicative of the delay between those two nodes. This graph represents less than 30% of the Class C networks reachable.

These systems can only guarantee the protection of communications between clients and servers, not between the communicating parties themselves.

Server (computing)

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Wikimedia Foundation rackmount servers in racks on a data center

First WWW server located at CERN with its original sticker that says: "This machine is a server. DO NOT POWER IT DOWN!!"

A network based on the client–server model where multiple individual clients request services and resources from centralized servers

A rack-mountable server with the top cover removed to reveal internal components

Sun's Cobalt Qube 3; a computer server appliance (2002); running Cobalt Linux (a customized version of Red Hat Linux, using the 2.2 Linux kernel), complete with the Apache web server.

In computing, a server is a piece of computer hardware or software (computer program) that provides functionality for other programs or devices, called "clients".

Email

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Method of exchanging messages ("mail") between people using electronic devices.

The at sign, a part of every SMTP email address

When a "robot" on Wikipedia makes changes to image files, the uploader receives an email about the changes made.

The interface of an email client, Thunderbird.

Mail can be stored on the client, on the server side, or in both places.

In computer networking, a rich client (also called heavy, fat or thick client) is a computer (a "client" in client–server network architecture) that typically provides rich functionality independent of the central server.

Diagram of the first internetworked connection

Internet protocol suite

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Set of communication protocols used in the Internet and similar computer networks.

An SRI International Packet Radio Van, used for the first three-way internetworked transmission.

Conceptual data flow in a simple network topology of two hosts (A and B) connected by a link between their respective routers. The application on each host executes read and write operations as if the processes were directly connected to each other by some kind of data pipe. After establishment of this pipe, most details of the communication are hidden from each process, as the underlying principles of communication are implemented in the lower protocol layers. In analogy, at the transport layer the communication appears as host-to-host, without knowledge of the application data structures and the connecting routers, while at the internetworking layer, individual network boundaries are traversed at each router.

Encapsulation of application data descending through the layers described in RFC 1122

Clients connecting to a service usually use ephemeral ports, i.e., port numbers assigned only for the duration of the transaction at random or from a specific range configured in the application.