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3.0 INTERNET TECHNOLOGIES PART 1 - Coggle Diagram
3.0 INTERNET TECHNOLOGIES PART 1
Web browser
what ?
A browser is a software that enables users with an Internet connection
Function
to access and view webpages on a computer or mobile devices
Examples
proprietary
i) Internet Explorer
ii) Safari
open source
i) Google Chrome
ii) Mozilla Firefox
ISP
what ?
The term internet service provider (ISP) refers to a company that provides access to the internet to both personal and business customers.
Role
A business that provides individuals and organizations access to the Internet free of for a fee
Examples
i. TM
ii. Maxis
iii. Celcom
Protocol
Function
to send data to a specific computer or device on Internet
HTTP
what ?
an acronym for Hyper Text Transfer Protocol is a system that is used to transmit and receive information from a server.
Example
http://www.portal.kmpp.matrik,edu.my
secure ? why ?
less secure because as the data is vulnerable to hackers
HTTPS
what ?
a secure transfer system that encrypts the data before the connection is formed for sending or retrieving the data from server ( also known as http secure)
Example
https://www.cimbclicks.com.my
secure ? why ?
secure because as the data is encrypted before it is send across a network.
IP Adress
what ?
a sequence of numbers that uniquely identifies the location of each computer or device connected to the internet or any other network.
IPv4
structure
i. each IPv4 address is made up of four groups of numbers, that range from 0 to 255, separated by a period.
ii. IPv4 has two parts :
the network part
the machine part
examples
10.10.20.16
first three numbers are the network part
and the last number is a machine part
IPv6
structure
i. each IPv6 address is represented as eight groups of four hexadecimal digits , separated by colons (:)
i. use a 128-bit address scheme allowing for a total of 2^218 address
example
2001:db8:a0b:12f0::1
the importance
Due to the growth of devices accessing the Internet, the original IPv4 addresses began decreasing in availability
URL
Define
Web address is a unique address for a web page.
Function
make an HTTP connection to the specified URL.
components
i. protocol
http (Hypertext Transfer Protocol)
https (Hypertext Transfer Protocol Secure)
ii. Domain name
www.nps.gov/
Path
grsm/planyourvisit/
iv. Web page name
wildlifeviewing.htm
example
https://www.facebook.com
Search Tools
i. Search engine
how its work ?
it uses the keywords to search for documents that relates to these key words and then put the results (hits) in order of relevance to the topic that was searched for.
when should use it ?
When to finds websites, webpages, images, video, news, maps and other information related to a specific topic.
examples
Google , Yahoo ! , Ask
ii. Subject directory
how its work ?
When click on the category link, the subject directory displays a list of subcategory links.
when should use it ?
for finding information on a topic when you don’t have precise ideas of what you need.
examples
Google Directory , Yahoo! Directory