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Chapter 2.4: Introduction To The Internet - Coggle Diagram
Chapter 2.4: Introduction To The Internet
Internet
Worldwide collection of networks that connects millions of businesses, government agencies, educational institutions and individuals.
Largest computer network, connecting millions of computers and devices around the world.
Advantages of the internet
Assist communication, connectivity and sharing
•Can send an e-mail to anyone in the world and delivered less than a minute.
•allow to have communication around the world.
Provide information, knowledge and learning
•Using search engine like Google to ask questions
• Sites like Youtube help explain topics
Online banking and shopping
•Buy item without visiting store
•view balance, make transactions, pay bills
Collaboration and work from home
•have a virtual office and work at home
•save money and time
Cloud computing and cloud storage
•allow to have endless supply of storage and backing up information easier and safer
•device can have access to more powerful computer
Entertainment
• give access to watch videos, movies, listen to music, and play online games
Disadvantages of internet
Identity theft, hacking, viruses and cheating
•easier for computer hackers and malicious users to hack account and steal personal information
•easier for student to cheat on exams
Exploitation, pornography and violent images
•easier for someone to pretend they are someone else
•full sites that contain easily accessed adult material
Cyber bullying, stalkers and crime
•post inappropriate about another person
•stalker find personal information about people
Spam and advertising
•easy way to reach much wider audience than traditional advertising methods
•because it is easy and cheap, you will see more advertising and spam in your email inbox
Depression, loneliness and social isolation
•easy to disconnect you from daily life
Health issues and obesity
•spending too much time on computer lead to obesity and unhealthy lifestyle
Intranet
‘Intra’ ‘means within and ‘net’ means group of interconnected computers
An intranet is a private computer network that uses Internet Protocols and network connectivity to securely share any part of an organization’s information with its employees
Information shared in intranet can only be access by authorised persons
Extranet
Private network that securely share part of organization’s information or operations with suppliers, vendors, partners, customers or other businesses.
Intranet that partially accessible to authorised outsiders
Enable people located outside a company to work together with company’s internally located employees
Provides ease sharing data, graphics, documents and other form of communication while protecting company’s information
Accessing capability of INTRANET, EXTRANET and INTERNET
•everyone has access to internet
•people who work for a company will have access to company intranet
•an extranet created by company to offer customers, suppliers and vendors specific data without allowing them to access to sensitive company data