Please enable JavaScript.
Coggle requires JavaScript to display documents.
Internet Technologies - Coggle Diagram
Internet Technologies
The role of ISP
-
Example of ISP: TM, Maxis, Celcom, Digi, TIME, City Broadband
ISP also provide related services such as :-Web site hosting and development
-Email hosting
-Online storage
Responsibility of an ISP:
i. Providing and maintaining a connection to the Internet.
ii. Support the hardware and software needed to service that connection.
iii. To protect their site and network from external threats such as viruses, hacker attacks and other illegal activities.
iv. Provide 24-hour customer service and technical support.
Factor to consider when selecting an ISP:
i. Types of connection –cellular/satellite/fiber-optic/cable
ii. Speed of your connection
iii .Access location
iv. Price and cost
The role of the browser
A browser is a software that enables users with an Internet connection to access and view web pages on a computer or mobile device.
Purpose of web browser:
•the tools we use to navigate the web.
•they connect to servers across the world, download the data we want, and then translate it into a visible image.
•to search for specific information, including text, pictures, music and video.
•to share personal information (such as social networking website).
•allow users to modify the website content (blog)
Example of web browser: Microsoft Edge ,Google Chrome ,Mozilla Firefox, Vivaldi ,Safari, Opera, Maxthon
-
IP address and URL
IP address is a sequence of numbers that uniquely identifies the location of each computer or device connected to the Internet or any other network.
(IPv4):
CHARACTERISTIC OF IPv4 ADDRESS:
•IPv4 uses a32-bit address scheme allowing for a total of 232 addresses =4294967296.
•Made up off our groups of decimal numbers,
•The number in each group is between 0 and 255, •Separator: period(.) •Each group consists of 8bits, so 4groups =32bits. •The lowest IP address :0.0.0.0
•The highest IP address :255.255.255.255
•Example:1.2.3.4,10.10.100.99,255.255.255.255
(IPv6): •WhyIPv6?The growth of the Internet has led to a shortage of IPv4 addresses. Because of this increase,IPv4 addresses are running out.•IPv6 uses a 128-bit address scheme allowing for a total of 21 28 addresses=.•Examples of IPV6 address: 2001:0db8:0a0b:12f0:0000:0000:0000:0005 ,2021:0db8:0:0:1319:8a2e:0370:57ab
Structure of IPv6: •Each IPv6 address is represented as eight groups/fields of four *hexadecimal digits, separated by colons(:).
•Each group consists of 16bits.
•Number in each group is between 0000 to FFFF
•Hence, total bits are 8x16=128bits
•Total IPv6 addresses is 2128
Web searching
Web searching or search tool is a program available on the Internet to help you find information among the millions of documents on the Web.
Types: Search Engine, Subject Directory
Internet services
Categories of Internet services: www, Email, Internet Messaging, VoIP, FTP
Types of websites
Business, Portal, Blog, Wiki, Online Social Network