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3.4 Networks & Internet, image, image - Coggle Diagram
3.4 Networks & Internet
Networks
Network: interconnected nodes (connection points); transmits, receives & exchanges various formats of data.
Nodes, i.e. computers, servers, routers
PAN, Personal Area Network: smallest network type, connected devices are very close to an individual
LAN, Local Area Network: group of computers/devices connected on single site
MAN, Metropolitan Area Network: covers larger geographical area, i.e. a city
WAN, Wide Area Network: national/international network, largest i.e. Internet
Connectivity Types
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Fibre-optic cables used more: better connectivity, greater distances, faster speed;
More reliable, faster speed, secure.
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Characteristics
Interoperability: allowing different digital tech./systems to connect & exchange data with another, without restrictions
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Standards & Protocols
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Each protocol states and decides how large each packed should be, or how it should be sent etc.
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Internet & Web Evolution
Web Expansion, 2000 - 2020
Semantic Web, 2020 - Present
The Early Internet, 1969 - 2000
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