Digital Communications Network.
Computer and Network Examples

The digital communication is a physical transfer of the data over a point-to-point or point-to-multipoint communication channel. Channels can be copper wires, optical fibres, wireless communication channels, etc. The data are realized as electromagnetic signals (radiowave, microwave, electrical voltage, etc.).

The digital communications are widely used in telecommunication, electrical engineering, computer engineering. In computer engineering the digital communications are used for communication with peripheral devices, in computer networking equipment (such as modems, LAN adapters, hubs, repeaters, etc.).

The digital network interconnects devices and includes a digital network server that communicates with the client workstations. There are used the HTTP, TCP/IP, ATM protocols, the OSI model.

Computer and Networks Area for ConceptDraw PRO provides professional looking examples, the libraries with ready-to-use predesigned vector stencils to help you create the Digital Communication Networks quick, easy and effective.

Digital communications network

Example 1. Digital communications network.

This example was redesigned from the file []

This example was created in ConceptDraw PRO using the Computer and Networks Area of ConceptDraw Solution Park and shows the Digital Communication Network diagram.

The diagrams designed with ConceptDraw PRO are vector graphic documents and are available for reviewing, modifying, and converting to a variety of formats (image, HTML, PDF file, MS PowerPoint Presentation, Adobe Flash or MS Visio).

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Picture: Near field communication (NFC). Computer and Network Examples
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Picture: Cisco Network Topology. Cisco icons, shapes, stencils and symbols
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When describing any computer network, we imagine a set of devices and nodes, arranged in some way. Talking about network structures, we should distinguish physical and logical network topologies, as physical topology is about devices location and logical topology illustrates data flow. In the same time, they do not have to match, and some devices, such as repeaters, may have a physical star layout, but a bus logical topology. There are two main types of computer network topologies: Physical topology that show the physical organization of a network - equipment and types of connections. Star network topology involves a set of devices that is connected to a single hub (router). Ring network topology means that, devices connected according this topology have two connections, connecting with nearby devices to make a loop. Bus network topology is the topology presented at the current diagram. It is similar to a ring topology. The difference is that data moves up and down a linear connection, copying itself where network equipment works as bus-stations along the way. This network topology can be used for small network, or when adding an extra device into a network.Common Network Topologies Diagram
Picture: Network Topologies
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Picture: Cisco Network Design. Cisco icons, shapes, stencils, symbols and design elements
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Picture: Active Directory Diagram
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Picture: How To use House Electrical Plan Software
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Picture: Network Diagrams for Bandwidth Management

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Picture: Metropolitan area networks (MAN). Computer and Network Examples
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Picture: Virtual networks. Computer and Network Examples
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