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Computer Network Articles
Page 46 of 122
What is Client-Server Architecture in Computer Network?
In Client-Server Architecture, a specific computer designated as a server provides various services to other computers known as clients. The server acts as a service provider, while the client acts as a service requester. When a client requests information from the server, the server processes the request and responds with the appropriate data or service. Client-Server Architecture Client 1 Client 2 Server Provides ...
Read MoreWhat is LAN (Local Area Network) in Computer Network?
A Local Area Network (LAN) is a computer network that connects devices within a limited geographical area, typically spanning a single building, office, or campus. LANs are privately owned networks that enable local connectivity and resource sharing among connected devices. LANs are commonly used in homes, offices, schools, and small businesses to connect personal computers, printers, servers, and other network devices. They facilitate efficient data transfer and resource sharing within the local environment. Local Area Network (LAN) Structure Switch/Hub ...
Read MoreWhat are the Advantages and Disadvantages of LAN in Computer Network?
A Local Area Network (LAN) is a computer network that connects devices within a limited geographical area such as a building, office, or campus. Understanding the advantages and disadvantages of LAN helps organizations make informed decisions about network implementation. LAN Network Components Computer 1 Computer 2 Printer Server Switch Advantages of LAN ...
Read MoreWhat is WAN (Wide Area Network) in Computer Network?
A Wide Area Network (WAN) is a computer network that connects two or more computers across large geographical distances, spanning cities, countries, or even continents. Unlike LANs, WANs utilize public networks such as telephone systems, microwave broadcasts, or satellite communications for connectivity. WAN Architecture LAN A WAN Infrastructure LAN B LAN C ...
Read MoreWhat is VSAT in the Computer Network?
VSAT represents a Very Small Aperture Terminal. It is a two-way satellite ground terminal with a dish antenna that is smaller than 3 meters in diameter. VSAT is commonly used to transmit narrowband data (such as point-of-sale transactions like credit card processing and polling) or broadband information for providing satellite internet access to remote areas, VoIP, and video communications. It also supports mobile communications across vast geographical areas. How VSAT Works VSAT systems operate through a hub-and-spoke network architecture. Remote VSAT terminals communicate with a central hub station via satellite, which then connects to terrestrial networks like the ...
Read MoreWhat are the RF (Radio Frequency) Networks?
RF (Radio Frequency) Networks are communication systems that use radio waves to transmit data wirelessly across various distances. These networks operate using electromagnetic radiation in the radio frequency spectrum, enabling wireless communication between devices without physical connections. RF signals can travel through air and space but require specific transmitting and receiving mechanisms. The RF spectrum spans frequencies from 3 kHz to 300 GHz, with different frequency bands exhibiting distinct propagation characteristics. RF Frequency Bands and Propagation In VLF (Very Low Frequency), LF (Low Frequency), and MF (Medium Frequency) bands, radio waves follow ground wave propagation patterns. AM ...
Read MoreExplain the functions of WAN in Computer Network
A Wide Area Network (WAN) serves multiple critical functions that enable organizations to connect geographically dispersed locations and resources. These functions make WANs essential for modern business operations and global communications. Key Functions of WAN Remote Data Entry Centralized Information Global Communication Resource Sharing WAN Core Remote ...
Read MoreWhat is an ARC NET in the Computer Network?
ARC NET (Attached Resources Computing Network) is a local area network topology that uses coaxial cables and token passing protocol for data transmission. Developed by Datapoint Corporation in the late 1970s, it was one of the earliest commercial networking technologies, predating both Ethernet and IBM Token Ring. ARC NET uses a 93-ohm RG-62 A/U coaxial cable, which is incompatible with thin Ethernet's 50-ohm cables despite their similar appearance. The network operates at 2.5 Mbps using analog signaling and can support up to 255 nodes (not 55 as often misunderstood) with proper configuration. ARC NET ...
Read MoreWhat is Fully-Interconnected Network Topology?
A Fully-Interconnected Network Topology, also known as a mesh topology, is a network design where every node is connected to every other node through dedicated point-to-point links. This creates a complete network where each device has direct communication paths to all other devices without requiring intermediate nodes. In this topology, each computer has its own control and decision-making power for communication priorities. The network provides high reliability since the failure of any single transmission line only affects communication between those two specific nodes, while all other connections remain operational. Fully-Interconnected Network (5 Nodes) ...
Read MoreWhat is MultiDrop Network Topology in Computer Network?
A MultiDrop Network Topology, also known as a broadcasting network, is a network configuration where multiple nodes share a single communication line or cable. Unlike a fully interconnected network that requires individual cables between all nodes, this topology uses one shared medium for all network communication. MultiDrop Network Topology A B C D Single Shared Communication Line Message ...
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