20543324
Description
Mind Map by Bhelina Banerjee, updated more than 1 year ago
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Created by Bhelina Banerjee
over 4 years ago
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Networks
- Internet
- A group of
inter-connected networks,
which can be used to
communicate with other
computers universally.
- A group of
inter-connected networks,
which can be used to
communicate with other
computers universally.
- Networks
- A group of two or more
computer system which
are inter-linked.
- A group of two or more
computer system which
are inter-linked.
- World Wide Web
- An information system on
the Internet which allows
documents to be
connected to other
documents by hypertext
links, enabling the user to
search for information by
moving from one
document to another.
- A collection of
web pages
- Stored on
computers all over
the world
- Accessed via
the Internet
- No central storage
- No owner
- An information system on
the Internet which allows
documents to be
connected to other
documents by hypertext
links, enabling the user to
search for information by
moving from one
document to another.
- URL
- Short for Uniform
Resource Locator
- A URL is a web
address
- All web addresses
are unique
- Short for Uniform
Resource Locator
- Parts of a Web Address
- www.abc.co,uk/images/logo.jpg
- www = World Wide Web
- abc = Name of organisation
- co = A company
- uk = UK-based
- images = folder location
- logo.jpg = file name
- www = World Wide Web
- www.abc.co,uk/images/logo.jpg
- Domains
- Top Level Domains (TLDs)
- .uk
- .fr
- .es
- .de
- .cz
- .com
- .org
- .gov
- .edu
- .uk
- Top Level Domains (TLDs)
- HTTP
- Short for Hyper Text
Transfer Protocol
- A protocol is
a set of rules
- HTTP defines the
rules used by
web browsers
and servers to
exchange
information
- Short for Hyper Text
Transfer Protocol
- Connectivity
- bandwidth = amount
of data that can be
transferred at
once/speed of data
transfer (Mbps)
- broadband = high
speed connection
to the Internet
large bandwidth
- Download is
faster than
upload, because
mostly people
download things
on the Internet
more than they
upload things.
- In the school, upload
speed is higher than
the download speed
because many
people are uploading
things (eg setting
homework, submitting
homework etc.)
- In the school, upload
speed is higher than
the download speed
because many
people are uploading
things (eg setting
homework, submitting
homework etc.)
- Fibre optic cables
- Data travels
through these at
a speed of 299
792 458 m/s,
which is the
speed of light
- copper cables
- A lot of interference
- much cheaper
than fibre
optic cables
- average
broadband
connection
- A lot of interference
- almost 0 interference,
due to lack of friction
- much faster for
transmission
- Data travels
through these at
a speed of 299
792 458 m/s,
which is the
speed of light
- wireless
- cheap
- easy to set up
- allows you to
link devices
- you can access anything anywhere
- less secure than
cabled data transfer
- interference
- interference
- not available
in some places
- slower
- cheap
- buffer
- an area of
storage
- an area of
storage
- bandwidth = amount
of data that can be
transferred at
once/speed of data
transfer (Mbps)
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