NETWORKS. WHAT IS A NETWORK? When two or more computers or devices are linked together. Any device connected to a network is a node.

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Presentation transcript:

NETWORKS

WHAT IS A NETWORK? When two or more computers or devices are linked together. Any device connected to a network is a node.

TYPES OF NETWORKS LAN (Local Area Network) WAN (Wide Area Network) MAN (Metropolitan Area Network) CAN (Campus Area Network) PAN (Personal Area Network)

LAN (LOCAL AREA NETWORK) A group of nodes linked together in a small geographical location such as a building or group of buildings.

WAN (WIDE AREA NETWORK) A collection of LANs that is used to send data across long distances. Sometimes thousands of miles.

MAN (METROPOLITAN AREA NETWORK) Typically owned by a local Government. Designed for a city or a town, a MAN is larger than a LAN and smaller than a WAN.

CAN (CAMPUS AREA NETWORK) A series of LANs in college campus buildings.

PAN (PERSONAL AREA NETWORK) A mini LAN for someone's personal devices.

CONNECTING TO A NETWORK Wired Connections Wireless Connections

WIRED CONNECTIONS Just plug in an Ethernet cable. Simple, right?

IN ADDITION TO ETHERNET Coaxial Cable Fiber Optic

WIRELESS CONNECTION Infrared Radio WiFi Bluetooth Microwaves (3G, 4G) Satellite

SENDING AND RECEIVING DATA Bandwidth The theoretical maximum data transferable at any given time. Throughput The actual amount of data being transferred.

THE CLOUD

CHARACTERISTICS OF CLOUD COMPUTING On-demand self service Customer can access without human contact Broad network access Can access from any location Resource pooling Services pooled to accommodate use by multiple subscribers Rapid elasticity Subscribers can increase use of resources scaling up and down as needed Measured service Provider meters service for billing and to analyze usage

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