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» We provide you study material i.e. PDF's for offline use. Presentation on theme: "Networks A network is a collection of computers and devices connected together via communications devices and transmission media Advantages of a network."— Presentation transcript:
1 Networks A network is a collection of computers and devices connected together via communications devices and
transmission media Advantages of a network include: Facilitating communications Sharing hardware Sharing data and information Sharing software Transferring funds 2
3 Bandwidth Measurement of the capacity of the channel Categories
4 Protocols Set of communication rules
5 Network Classifications
6 Network Classifications
7 Network Classifications
8 Network Architecture The design of computers, devices, and media on a network is sometimes called the network
architecture Client/server Peer-to-peer Terminal 9 Peer-to-peer (P2P) Model 10 The Client/Server Model
11 The Client/Server Model (continued) 12 The Peer-to-peer Model
13 Network Topology A network topology refers to the layout of the computers and devices in a communications network Star
network Bus network Ring network 14 Network Topology
Network topology is the layout pattern of interconnections of the various elements (links, nodes, etc.) of a computer. Types of network topology Star Bus Ring Hierarchical Networks are connections of two or more computers that work together to exchange information and share resources The network architecture describes how the network is arranged and how the resources are coordinated
and shared Network architecture also describes how a computer network is configured and what strategies are used Topology – network arrangement or configuration 15 Star Network Smaller computers linked to a central
unit 16 Bus Network Each device handles its own communication control 17 Ring
Network Each device is connected to two other devices 18 Hierarchical Network
Several computers linked to a central host 19 Principal Network Configurations
20 Network Communications Standards
21 Network Communications Standards 22 Network Communications Standards 23
Network Communications Standards 24 Network Communications Standards 25 Network Communications Standards 26 Network Communications Standards 27
Communications Software
28 Communications Over the Telephone Network
29 Communications Over the Telephone Network
30 Communications Over the Telephone Network 31 Communications Over the Telephone
Network 32 Home
Networks Home networks provide computers with the following capabilities: Connect to the Internet at the same time Share a single high-speed Internet connection Access files and programs on other computers Share peripherals Play multiplayer games Connect game consoles to the Internet Subscribe to and use VoIP
33 Home Networks 34 Organizational Internets
35 Careers In IT Network Administrator Which of the following is a collection of computers and devices connected together via communications devices and transmission media quizlet?A network is a collection of computers and devices connected together, often wirelessly, via communications devices and transmission media.
Which of the following is a collection of computers and devices connected?Answer : A networks is a collection of computers and devices connected by communication channels.
Which is a device that allows a computer to connect and communicate with other computers?Option 1 is correct, i.e. MODEM. A modem is a hardware device that allows a computer to send and receive data over a telephone line or a cable or satellite connection. MODEM stands for modulator-demodulator.
Is a collection of devices connected by communication channels?A computer network, often simply referred to as a network, is a collection of computers and devices interconnected by communications channels that facilitate communication and allows sharing of resources and information among interconnected devices.
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