Computer communication
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This document discusses computer networks. It describes that the primary goals of a network are to share resources like printers, share information between computers to avoid duplicating files, and allow communication between remote locations. It defines a local area network as connecting systems within a single building using wired or wireless connections. It also explains different network topologies like star, ring and bus networks and how devices connect in each type.
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Computer communication and networks
Data communication involves the exchange of data between two devices via some transmission medium. There are five key components: the message being sent, the sender, the receiver, the transmission medium such as a wire or cable, and protocols which establish communication rules. Data can flow in simplex, half-duplex, or full-duplex mode. A network connects multiple devices called nodes and data is generated and shared between these nodes. Connections can be point-to-point between two nodes or multipoint between more than two nodes where the channel capacity is shared.
Local area network
This document discusses local area networks (LANs) and the use of fiber optic cables in LAN architecture. It describes different LAN topologies including bus, ring, star and their implementations. It compares fiber optic cables favorably to copper cables, noting fiber's higher bandwidth, reliability and longer transmission distances. The document also discusses specific ring-based standards like FDDI that use fiber optic cables to interconnect lower-speed LANs or mainframe computers at speeds up to 100 Mbps. Overall, the document promotes the use of fiber optic cables in LANs for their benefits over copper in supporting growing bandwidth demands.
computer networks presentation
This document provides information about computer networks. It discusses that a computer network allows two or more computers to exchange information via data communication links. It then describes different types of networks like LAN, MAN, WAN based on size. It also discusses different network topologies like star, bus, ring and tree and network devices like hub, repeater, bridge, router and gateway. It finally explains common network protocols like TCP, IP, HTTP, FTP and HTTPS.
Computer Networking.
1) A computer network connects computers together to share resources like printers, files, and internet connections. Networks can be local-area networks within a building or wide-area networks spanning cities.
2) Common network topologies include star, bus, ring, tree and mesh. Star networks connect devices to a central hub while bus networks use a common backbone cable. Ring networks transmit messages in one direction around a closed loop.
3) Computer networks allow for resource sharing, improved communication and availability of information, though they also present security risks and require maintenance of hardware and software.
Computer communications and networks
This document outlines the structure and content of a module on computer communications and networks. The module aims to provide an understanding of networking principles, technologies, and protocols. It is divided into four parts that cover: data transmission basics, packet transmission and local area networks, internetworking concepts and protocols like IP and TCP, and finally network applications. Assessment will involve a two hour written exam based on previous years' papers, with no coursework required.
An introduction to networking
This document provides an introduction to networking. It defines a network as a group of connected computers and devices that allows users to share resources. Networks enable collaboration and data sharing between multiple users. The document outlines different types of networks including local area networks (LANs), metropolitan area networks (MANs), and wide area networks (WANs). It distinguishes between peer-to-peer and client-server network models. Intranets are also discussed as private networks internal to an organization that use the same protocols as the public Internet but have restricted access.
Basic concepts of computer Networking
The document discusses different types of computer network topologies. It defines network topology as the physical configuration of cables, computers, and other devices on a network. The key network topologies covered are bus, ring, star, and mesh. Advantages and disadvantages of each topology are summarized.
Computer Network & Types
This document defines and compares different types of computer networks. It describes a local area network (LAN) as connecting devices within a limited physical area like a home or business through various transmission mediums. A metropolitan area network (MAN) interconnects users within a region larger than a LAN but smaller than a wide area network. A wide area network (WAN) connects LANs across national and international distances using existing telecommunication infrastructure. Finally, a personal area network (PAN) communicates between devices in close proximity, within a room, using wireless technologies like Bluetooth.
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Computer communication and networks
Data communication involves the exchange of data between two devices via some transmission medium. There are five key components: the message being sent, the sender, the receiver, the transmission medium such as a wire or cable, and protocols which establish communication rules. Data can flow in simplex, half-duplex, or full-duplex mode. A network connects multiple devices called nodes and data is generated and shared between these nodes. Connections can be point-to-point between two nodes or multipoint between more than two nodes where the channel capacity is shared.
Local area network
This document discusses local area networks (LANs) and the use of fiber optic cables in LAN architecture. It describes different LAN topologies including bus, ring, star and their implementations. It compares fiber optic cables favorably to copper cables, noting fiber's higher bandwidth, reliability and longer transmission distances. The document also discusses specific ring-based standards like FDDI that use fiber optic cables to interconnect lower-speed LANs or mainframe computers at speeds up to 100 Mbps. Overall, the document promotes the use of fiber optic cables in LANs for their benefits over copper in supporting growing bandwidth demands.
computer networks presentation
This document provides information about computer networks. It discusses that a computer network allows two or more computers to exchange information via data communication links. It then describes different types of networks like LAN, MAN, WAN based on size. It also discusses different network topologies like star, bus, ring and tree and network devices like hub, repeater, bridge, router and gateway. It finally explains common network protocols like TCP, IP, HTTP, FTP and HTTPS.
Computer Networking.
1) A computer network connects computers together to share resources like printers, files, and internet connections. Networks can be local-area networks within a building or wide-area networks spanning cities.
2) Common network topologies include star, bus, ring, tree and mesh. Star networks connect devices to a central hub while bus networks use a common backbone cable. Ring networks transmit messages in one direction around a closed loop.
3) Computer networks allow for resource sharing, improved communication and availability of information, though they also present security risks and require maintenance of hardware and software.
Computer communications and networks
This document outlines the structure and content of a module on computer communications and networks. The module aims to provide an understanding of networking principles, technologies, and protocols. It is divided into four parts that cover: data transmission basics, packet transmission and local area networks, internetworking concepts and protocols like IP and TCP, and finally network applications. Assessment will involve a two hour written exam based on previous years' papers, with no coursework required.
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This document provides an introduction to networking. It defines a network as a group of connected computers and devices that allows users to share resources. Networks enable collaboration and data sharing between multiple users. The document outlines different types of networks including local area networks (LANs), metropolitan area networks (MANs), and wide area networks (WANs). It distinguishes between peer-to-peer and client-server network models. Intranets are also discussed as private networks internal to an organization that use the same protocols as the public Internet but have restricted access.
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The document discusses different types of computer network topologies. It defines network topology as the physical configuration of cables, computers, and other devices on a network. The key network topologies covered are bus, ring, star, and mesh. Advantages and disadvantages of each topology are summarized.
Computer Network & Types
This document defines and compares different types of computer networks. It describes a local area network (LAN) as connecting devices within a limited physical area like a home or business through various transmission mediums. A metropolitan area network (MAN) interconnects users within a region larger than a LAN but smaller than a wide area network. A wide area network (WAN) connects LANs across national and international distances using existing telecommunication infrastructure. Finally, a personal area network (PAN) communicates between devices in close proximity, within a room, using wireless technologies like Bluetooth.
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This document defines and describes the basic components of a computer network. It explains that a network interface card formats and sends/receives data between connected nodes. A hub connects all computers in a network, while a switch uses addresses to route requests to specific servers. Servers run operating systems and store shared data, with file servers storing files and printer servers managing printers. Clients can send and receive data from other network computers. A modem converts signals between a landline and the Internet. A router directs data from the modem to connected devices like computers, using cables or wireless connections.
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Computer networks allow interconnected computers and devices to share information and resources. They transmit digital data through physical transmission mediums like cables or wirelessly. Protocols define communication standards to minimize errors. Popular uses of networks include e-business, online education, and remote communication, which have benefited society through increased access and lower costs.
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Presentation on computer networking
This document provides an overview of computer networks, including local area networks (LANs), metropolitan area networks (MANs), and wide area networks (WANs). It discusses three main network topologies - bus, ring, and star - and compares their characteristics. The document was presented by Jyoti Tiwari for their MCA 1st semester class covering topics like the definition of computer networks, how they communicate digitally, examples of different network types classified by size and geographic reach, and distinguishing features of common network topologies.
Types of computer network
There are several types of computer networks:
- Local area networks (LANs) connect devices within a small geographic area like a home or office using technologies like Ethernet or WiFi.
- Metropolitan area networks (MANs) connect devices within a city using technologies like DSL or cable.
- Wide area networks (MANs) connect LANs over long distances using technologies like leased phone lines or satellites.
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A computer network is defined as the interconnection of two or more computers. It is done to enable the computers to communicate and share available resources.
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Networks connect two or more computers using various mediums like cables or wireless signals. They allow for sharing of files, data, and applications between systems without needing to physically transfer anything. Networks can be configured in a client-server model where some computers act as servers providing resources and other computers act as clients accessing those resources. Alternatively, networks can use a peer-to-peer model where each computer both acts as a client and server, allowing all systems to share directly. Networks can operate within a single location or span multiple geographic areas. Hardware like network interface cards and cables form the physical infrastructure while networking software manages communication and resource sharing.
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Data consists of raw facts and figures that can be processed into information. Data communication is the electronic transmission of data from one place to another using a medium. There are three components of data communication: a sender, medium, and receiver. Data can be transmitted in three modes: simplex (one-way), half duplex (two-way but not simultaneous), and full duplex (two-way simultaneously). Digital signals are transmitted as a sequence of voltages represented in binary form using a carrier wave. A computer network connects two or more computers to share resources through cables or wireless connections. There are three main types of networks: local area networks (LAN), wide area networks (WAN), and metropolitan area networks (MAN). Network top
Lan, man and wan ppt final
A computer network connects autonomous computers that can exchange information. A local area network (LAN) connects computers within a small geographic area like a building using technologies like Ethernet. A metropolitan area network (MAN) extends across a city using technologies like fiber optics. A wide area network (WAN) connects computers across large geographic areas like countries using technologies like leased lines.
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If you want to purchase the content e-mail me on dulith1989@gmail.com
Computer network ppt
A computer network connects multiple computers and devices to allow communication and sharing of resources. There are different types of networks including local area networks (LANs) within a single building, metropolitan area networks (MANs) within a city, and wide area networks (WANs) across large distances like countries. Common network topologies include bus, ring, star, tree and mesh configurations. Computer networks enable file sharing, printer sharing, collaboration, remote access, data protection, and centralized administration.
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This document discusses three types of computer networks: local area networks (LANs), metropolitan area networks (MANs), and wide area networks (WANs). LANs connect computers within a limited local area like a home or single building. MANs operate within a larger area like a city using technologies like fiber cables and satellites. WANs cover the largest geographic areas, even spanning countries or borders, using long-distance transmission media.
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The document provides an overview of the history and development of the Internet. It discusses how the Internet originated from the ARPANET network created by the U.S. Department of Defense in the 1960s to enable communication between researchers even if parts of the network failed. It describes how standards like TCP/IP were developed in the 1970s and 1980s, allowing the Internet to grow rapidly from around 1,000 hosts in 1984 to over 200 million hosts by 2002. The document also summarizes how the Internet works, including topics like browsers, URLs, domain names, and different ways users can access the Internet through connections like LAN servers, dial-up, or online services.
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I have discussed about the common problem of network issues of a computer . How we can find out what is the bug on our network wizerd and what should we do for that perticular problem . I also discussed about the physical hardware problem and how to find out what the problem is and what is the way to find the solution for it . If you think for a problem that i am finished or my machine is finished it is your foolishness . So you can read my slides and can find out the problem and their solution .
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Computer communication and internet
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Computer networks allow interconnected computers and devices to share information and resources. They transmit digital data through physical transmission mediums like cables or wirelessly. Protocols define communication standards to minimize errors. Popular uses of networks include e-business, online education, and remote communication, which have benefited society through increased access and lower costs.
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There are several types of computer networks:
- Local area networks (LANs) connect devices within a small geographic area like a home or office using technologies like Ethernet or WiFi.
- Metropolitan area networks (MANs) connect devices within a city using technologies like DSL or cable.
- Wide area networks (MANs) connect LANs over long distances using technologies like leased phone lines or satellites.
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A computer network is defined as the interconnection of two or more computers. It is done to enable the computers to communicate and share available resources.
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Classification by their geographical area
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Introduction to network
Networks connect two or more computers using various mediums like cables or wireless signals. They allow for sharing of files, data, and applications between systems without needing to physically transfer anything. Networks can be configured in a client-server model where some computers act as servers providing resources and other computers act as clients accessing those resources. Alternatively, networks can use a peer-to-peer model where each computer both acts as a client and server, allowing all systems to share directly. Networks can operate within a single location or span multiple geographic areas. Hardware like network interface cards and cables form the physical infrastructure while networking software manages communication and resource sharing.
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This document provides an overview of key concepts in computer networks and communication. It defines what a network is, discusses the need for networking and sharing of resources, and outlines the evolution of early networks like ARPANET and NSFNET into the modern Internet. It also covers network topologies, transmission media, switching techniques, common network devices, and communication protocols.
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Data consists of raw facts and figures that can be processed into information. Data communication is the electronic transmission of data from one place to another using a medium. There are three components of data communication: a sender, medium, and receiver. Data can be transmitted in three modes: simplex (one-way), half duplex (two-way but not simultaneous), and full duplex (two-way simultaneously). Digital signals are transmitted as a sequence of voltages represented in binary form using a carrier wave. A computer network connects two or more computers to share resources through cables or wireless connections. There are three main types of networks: local area networks (LAN), wide area networks (WAN), and metropolitan area networks (MAN). Network top
Lan, man and wan ppt final
A computer network connects autonomous computers that can exchange information. A local area network (LAN) connects computers within a small geographic area like a building using technologies like Ethernet. A metropolitan area network (MAN) extends across a city using technologies like fiber optics. A wide area network (WAN) connects computers across large geographic areas like countries using technologies like leased lines.
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This document provides an introduction to data communication and networking. It discusses analog and digital data, data communication, data flow including simplex, half-duplex and full-duplex, and modems. It also covers local area networks, metropolitan area networks, wide area networks, network topologies including linear bus, star, tree and others. Finally, it discusses the OSI model and considerations for data communication networks including performance, consistency, reliability and recovery.
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This document provides an overview of computer networks. It defines what a network is and discusses the need for networking. It describes the key components of a network including nodes, servers, network interface units. It also covers the evolution of networks from ARPANET to the modern Internet. It defines different types of networks including LANs, MANs, and WANs. Finally, it discusses various networking topics such as transmission media, switching techniques, wireless networks and common terminology.
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This document provides an overview of data communications and computer networks. It discusses the basic elements of a communication system including senders, receivers, and transmission media. It then describes different types of transmission media such as twisted pair wire, coaxial cable, microwave systems, and optical fibers. The document also covers digital and analog data transmission, network topologies including star, ring, bus and hybrid networks. It defines local and wide area networks and describes some common networking devices like network interface cards.
Internet protocol (ip) ppt
IP specifies the format of packets, also called #datagrams, and the addressing scheme. Most networks combine IP with a higher-level protocol called Transmission Control Protocol (TCP), which establishes a virtual connection between a destination and a source.
If you want to purchase the content e-mail me on dulith1989@gmail.com
Computer network ppt
A computer network connects multiple computers and devices to allow communication and sharing of resources. There are different types of networks including local area networks (LANs) within a single building, metropolitan area networks (MANs) within a city, and wide area networks (WANs) across large distances like countries. Common network topologies include bus, ring, star, tree and mesh configurations. Computer networks enable file sharing, printer sharing, collaboration, remote access, data protection, and centralized administration.
Types of network
This document discusses three types of computer networks: local area networks (LANs), metropolitan area networks (MANs), and wide area networks (WANs). LANs connect computers within a limited local area like a home or single building. MANs operate within a larger area like a city using technologies like fiber cables and satellites. WANs cover the largest geographic areas, even spanning countries or borders, using long-distance transmission media.
Internet
The document provides an overview of the history and development of the Internet. It discusses how the Internet originated from the ARPANET network created by the U.S. Department of Defense in the 1960s to enable communication between researchers even if parts of the network failed. It describes how standards like TCP/IP were developed in the 1970s and 1980s, allowing the Internet to grow rapidly from around 1,000 hosts in 1984 to over 200 million hosts by 2002. The document also summarizes how the Internet works, including topics like browsers, URLs, domain names, and different ways users can access the Internet through connections like LAN servers, dial-up, or online services.
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I have discussed about the common problem of network issues of a computer . How we can find out what is the bug on our network wizerd and what should we do for that perticular problem . I also discussed about the physical hardware problem and how to find out what the problem is and what is the way to find the solution for it . If you think for a problem that i am finished or my machine is finished it is your foolishness . So you can read my slides and can find out the problem and their solution .
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Computer communication
- 1. - Network
- 4. i. Sharing of resources : Primary goal of a computer network is to share resources. For example several PCs can be connected to a single expensive line printer. ii. Sharing information: Information on a single computer can be accessed by other computers in the network. Duplication of data file on separate PCs can be avoided. iii. Communication: When several PCs are connected to each other, messages can be sent and received. From a remote location, a mobile salesman can relay important messages to the central office regarding orders. Relevant databases are updated and the business commitments are fulfilled.
- 9. A network connecting systems and devices inside a single building or buildings close to each other is called Local Area Network (LAN). Generally LANs do not use the telephone network. They are connected either by wire or wireless. Wired connection may be using twisted pairs, coaxial cables or Fiber Optic cables. In a wireless LAN, connections may be using infrared or radio waves. Wireless networks are useful when computers are portable. However, wireless network communicates slowly than a wired network.
- 11. Network Topology
- 12. The network topology is the structure or layout of the communication channels that connects the various computers on the network. Each computer in the network is called a node. There are a number of factors that determine the topology suitable for a given situation. Some of the important consideration is the type of nodes, the expected performance, type of wiring (physical link) used and the cost. Network can be laid out in different ways. The five common topologies are star, ring, bus, hybrid and FDDI.
- 13. In a star network all computers and other communication devices are connected to a central hub . Such as a file server or host computer usually by a Unshielded Twisted Pair (UTP) cables.
- 15. In a ring network computers and other communication devices are connected in a continuous loop. Electronic data are passed around the ring in one direction, with each node serving as a repeater until it reaches the right destination. There is no central host computer or server.
- 17. In a bus network all communication devices are connected to a common cable called bus. There is no central computer or server. The data transmission is bidirectional.
- 19. Thank You! Presented by : MUKUL