20580599
Description
Mind Map by Karishma Chhatwal, updated more than 1 year ago
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Created by Karishma Chhatwal
almost 5 years ago
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Connectivity
- Deep Sea Internet Cables
- connected on land and under the ocean
- Optical Fibres
- Modern cables use optical fiber technology to
carry digital data
- Modern cables use optical fiber technology to
carry digital data
- Different colours
show direction of
flow
- Good website to
look into
- http://www.submarinecablemap.com/#/
- http://www.submarinecablemap.com/#/
- connected on land and under the ocean
- The most connected places
are America and Europe ,
America and China
- Bandwidth
- The amount of data that
can be carried at a time
- Maximum rate of data transfer across a
given path
- Network Bandwidth
- Data transfer capacity of
a network
- Data transfer capacity of
a network
- Data Bandwidth
- Maximum data transfer rate of a
network or internet connection
- measures how much data can be sent over a specific
connection in a given amount of time
- measures how much data can be sent over a specific
connection in a given amount of time
- Maximum data transfer rate of a
network or internet connection
- Digital Bandwidth
- number of pulses per second measured in
bits per second (bps)
- number of pulses per second measured in
bits per second (bps)
- Network Bandwidth
- https://encyclopedia2.thefreedictionary.com/Digital+bandwidth
Annotations:
- Good website to look into for extra info
- The amount of data that
can be carried at a time
- Connection speed
- The speed that data is transferred between your
device and the internet
- Download speed
- Rate at which data is transferred from the internet
to the user's computer
- measured in megabytes per second(mbps)
- measured in megabytes per second(mbps)
- More people download instead of uploading so
downloading rate is quicker
- Rate at which data is transferred from the internet
to the user's computer
- Receiving speed
- how quickly you can
upload data
- how quickly you can
upload data
- Download speed
- The speed that data is transferred between your
device and the internet
- Medium
- physical transmission medium
- such as optical fibers
- Presentation medium
- Such as multimedia and advertising media
- Such as multimedia and advertising media
- such as optical fibers
- Storage medium
- any technology including devices and materials and used
to place,keep and retrieve electronic data
- any technology including devices and materials and used
to place,keep and retrieve electronic data
- physical transmission medium
- wireless connection
- Advantages
- easy to set up
- cheap to buy
- Mobility
- link up devices
- you can access it
wherever you are
- easy to set up
- Disadvantages
- Bandwidth
- slow 54 mbps
- slow 54 mbps
- poor security
- lots of interference
- walls/furniture
- walls/furniture
- Bandwidth
- Advantages
- Buffer
- an area of memory used for the temporary
storage of data when a program or
hardware device needs an uninterrupted
flow of information
- an area of memory used for the temporary
storage of data when a program or
hardware device needs an uninterrupted
flow of information
- Ethernet cable
- Ethernet networking standard uses twisted pair
copper cabling or fiber optics
- Ethernet networking standard uses twisted pair
copper cabling or fiber optics
- Fiber optic cables
- Data travels through these at a
speed of 299 792 458 m/s which is
the speed of light
- Expensive due to microscopic size
- Copper cables
- a lot of interference
- cheap
- can be used as
average speed of
broadband
- a lot of interference
- Data travels through these at a
speed of 299 792 458 m/s which is
the speed of light
- The history of connectivity
- the first cable was 2,500 miles long and was laid across the Atlantic in 1858 after many difficulties including storms and cable breakages
- For each mile of cable 133 miles of copper and iron
wire was needed
- total weight was 1 ton per mile
- total weight was 1 ton per mile
- For each mile of cable 133 miles of copper and iron
wire was needed
- the first cable was 2,500 miles long and was laid across the Atlantic in 1858 after many difficulties including storms and cable breakages
- broadband
- high speed connection to the internet that has superseded
the use of dial-up connection
- fiber optic glass thread is used in modern cables,with up to 1,000 glass
fibers in a single cable
- high speed connection to the internet that has superseded
the use of dial-up connection
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