Internet

Last updated: February 8, 2026Reviewed date: February 8, 2026Reading time: 20 min read
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The internet is a worldwide computer network that transmits a variety of data and media across interconnected devices. It works by using a packet routing network that follows Internet Protocol (IP) and Transport Control Protocol (TCP) Internet is a global network that connects billions of computers...

For severe symptoms, danger signs, pregnancy, child illness, or sudden worsening, seek urgent medical care.

বাংলা রোগী নোট এখনো যোগ করা হয়নি। পোস্ট এডিটরে “RX Bangla Patient Mode” বক্স থেকে সহজ বাংলা সারাংশ যোগ করুন।

এই তথ্য শিক্ষা ও সচেতনতার জন্য। এটি ডাক্তারি পরীক্ষা, রোগ নির্ণয় বা প্রেসক্রিপশনের বিকল্প নয়।

Article Summary

The internet is a worldwide computer network that transmits a variety of data and media across interconnected devices. It works by using a packet routing network that follows Internet Protocol (IP) and Transport Control Protocol (TCP) Internet is a global network that connects billions of computers across the world with each other and to the World Wide Web. It uses a standard internet protocol suite (TCP/IP)...

Key Takeaways

  • This article explains Why is the Internet Called a Network? in simple medical language.
  • This article explains How does the internetwork? in simple medical language.
  • This article explains Advantages of the Internet: in simple medical language.
  • This article explains Intranet in simple medical language.
Educational health guideWritten for patient understanding and clinical awareness.
Reviewed content workflowUse writer and reviewer profiles for stronger trust.
Emergency safety firstUrgent warning signs are highlighted below.

Seek urgent medical care if you notice

These warning signs are general safety guidance. Local emergency numbers and clinical judgment should always come first.

  • Severe symptoms, breathing difficulty, fainting, confusion, or rapidly worsening illness.
  • New weakness, severe pain, high fever, or symptoms after a serious injury.
  • Any symptom that feels urgent, unusual, or unsafe for the patient.
1

Emergency now

Use emergency care for severe, sudden, rapidly worsening, or life-threatening symptoms.

2

See a doctor

Book a professional medical evaluation if symptoms persist, worsen, recur often, affect daily activities, or occur in a high-risk patient.

3

Learn safely

Use this article to understand possible causes, tests, treatment options, prevention, and questions to ask your clinician.

The internet is a worldwide computer network that transmits a variety of data and media across interconnected devices. It works by using a packet routing network that follows Internet Protocol (IP) and Transport Control Protocol (TCP)

Internet is a global network that connects billions of computers across the world with each other and to the World Wide Web. It uses a standard internet protocol suite (TCP/IP) to connect billions of computer users worldwide. It is set up by using cables such as optical fibers and other wireless and networking technologies. At present, the internet is the fastest mean of sending or exchanging information and data between computers across the world.

It is believed that the internet was developed by “The Defense Advanced Projects Agency” (DARPA) department of the United States. And, it was first connected in 1969.

Why is the Internet Called a Network?

Internet is called a network as it creates a network by connecting computers and servers across the world using routers, switches and telephone lines, and other communication devices and channels. So, it can be considered a global network of physical cables such as copper telephone wires, fiber optic cables, tv cables, etc. Furthermore, even wireless connections like 3G, 4G, or Wi-Fi make use of these cables to access the Internet.

The Internet is different from the World Wide Web as the World Wide Web is a network of computers and servers created by connecting them through the internet. So, the internet is the backbone of the web as it provides the technical infrastructure to establish the WWW and acts as a medium to transmit information from one computer to another computer. It uses web browsers to display the information on the client, which it fetches from web servers

The internet is not owned by a single person or organization entirely. It is a concept based on physical infrastructure that connects networks with other networks to create a global network of billions of computers. As of 12 August 2016, there were more than 300 crores of internet users across the world.

How does the internetwork?

Before understanding this let us understand some basics related to the internet:

The internet works with the help of clients and servers. A device such as a laptop, which is connected to the internet is called a client, not a server as it is not directly connected to the internet. However, it is indirectly connected to the internet through an Internet Service Provider (ISP) and is identified by an IP address, which is a string of numbers. Just like you have an address for your home that uniquely identifies your home, an IP address acts as the shipping address of your device. The IP address is provided by your ISP, and you can see what IP address your ISP has given to your system.

A server is a large computer that stores websites. It also has an IP address. A place where a large number of servers are stored is called a data center. The server accepts requests sent by the client through a browser over a network (internet) and responds accordingly.

To access the internet we need a domain name, which represents an IP address number, i.e., each IP address has been assigned a domain name. For example, youtube.com, facebook.com, and paypal.com are used to represent the IP addresses. Domain names are created as it is difficult for a person to remember a long string of numbers. However, the internet does not understand the domain name, it understands the IP address, so when you enter the domain name in the browser search bar, the internet has to get the IP addresses of this domain name from a huge phone book, which is known as DNS

For example, if you have a person’s name, you can find his phone number in a phone book by searching his name. The internet uses the DNS server in the same way to find the IP address of the domain name. DNS servers are managed by ISPs or similar organizations.

Now after understanding the basics, let us see how the internet works?

When you turn on your computer and type a domain name in the browser search bar, your browser sends a request to the DNS server to get the corresponding IP address. After getting the IP address, the browser forwards the request to the respective server.

Once the server gets the request to provide information about a particular website, the data starts flowing. The data is transferred through the optical fiber cables in digital format or the form of light pulses. As the servers are placed at distant places, the data may have to travel thousands of miles through optical fiber cable to reach your computer.

The optical fiber is connected to a router, which converts the light signals into electrical signals. These electrical signals are transmitted to your laptop using an Ethernet cable. Thus, you receive the desired information through the internet, which is a cable that connects you with the server.

Furthermore, if you are using wireless internet using wifi or mobile data, the signals from the optical cable are first sent to a cell tower and from where it reaches your cell phone in the form of electromagnetic waves.

The internet is managed by ICANN (Internet Corporation for Assigned Names and Numbers) located in the USA. It manages IP addresses assignment, domain

The data transfer is very fast on the internet. The moment you press enter you get the information from a server located thousands of miles away from you. The reason for this speed is that the data is sent in the binary form (0, 1), and these zeros and ones are divided into small pieces called packets, which can be sent at high speed.

Advantages of the Internet:

  • Instant Messaging: You can send messages or communicate to anyone using the internet, such as email, voice chat, video conferencing, etc.
  • Get directions: Using GPS technology, you can get directions to almost every place in a city, country, etc. You can find restaurants, malls, or any other service near your location.
  • Online Shopping: It allows you to shop online such as you can be clothes, shoes, book movie tickets, railway tickets, flight tickets, and more.
  • Pay Bills: You can pay your bills online, such as electricity bills, gas bills, college fees, etc.
  • Online Banking: It allows you to use internet banking in which you can check your balance, receive or transfer money, get a statement, request a checkbook, etc.
  • Online Selling: You can sell your products or services online. It helps you reach more customers and thus increases your sales and profit.
  • Work from Home: In case you need to work from home, you can do it using a system with internet access. Today, many companies allow their employees to work from home.
  • Entertainment: You can listen to online music, watch videos or movies, and play online games.
  • Cloud computing: It enables you to connect your computers and internet-enabled devices to cloud services such as cloud storage, cloud computing, etc.
  • Career building: You can search for jobs online on different job portals and send your CV through email if required.

Intranet

The intranet is a private network that belongs to a particular organization. It is designed for the exclusive use of an organization and its associates, such as employees, customers, and other authorized people. It offers a secure platform to convey information and share data with authorized users. Confidential information, database, links, forms, and applications can be made available to the staff through the intranet. So, it is like a private internet or an internal website that is operating within an organization to provide its employees access to its information and records. Each computer in the intranet is identified by a unique IP Address.

It is based on internet protocols (TCP/IP) and is protected from unauthorized access with firewalls and other security systems. The firewall monitors the incoming and outgoing data packets to ensure they don’t contain unauthorized requests. So, users on the intranet can access the internet, but internet users can’t access the intranet if they are not authorized for it. Furthermore, to access the intranet, the authorized user is required to be connected to its LAN (Local Area Network).

Some of the benefits of the intranet are:

  • It is cheap and easy to implement and run and is safer than the internet and extranet
  • It streamlines communication that enables the company to share its data, information, and other resources among employees without any delay. The entire staff can receive the company’s announcements, ask questions, and access internal documents.
  • It provides a secure space to store and develop applications to support business operations.
  • It improves the efficiency of the company by speeding up workflow and reducing errors. Thus, it helps achieve targets by completing the tasks on time.
  • It offers a testing platform for new ideas before they are uploaded on the company’s internet webpage. Thus, it helps maintain the credibility of the company
  • Information is shared in real-time, or updates are reflected immediately to all the authorized users.
  • Modern intranets also offer a mobile app that allows employees to stay connected on the go.
  • It aids in project management and tracking workflow and teams’ progress.
  • It can work with mobile devices, which means it can provide information that exists on the intranet directly to mobile devices of employees such as phones, tablets, etc.
  • It can also be used to motivate employees, facilitate employee recognition, and reward them for performing beyond expectations.

How the Intranet Works:

Intranet comprises three components: a web server, an intranet platform, and applications. The web server is hardware that contains all the intranet software and data. It manages all requests for files hosted over the server and finds the requested files and then delivers them to the user’s computer. The intranet platform, which is software, allows communication tools, collaboration apps, and databases to work seamlessly with each other. It is tailored to the specific needs of a business.

The applications are required to enable users to work smoothly. They are the computing tools that allow users to do their work, communicate, coordinate with each other and retrieve and store information.

Furthermore, the user who wants to access the intranet is required to have a special network password and should be connected to the LAN. A user who is working remotely can gain access to the intranet through a virtual private network (VPN) that allows them to sign in to the intranet to access the information.

Disadvantages of Intranet:

  • It may be costly to set up an Intranet due to hidden costs and complexity.
  • If the firewall does not work properly or is not installed, it can be hacked by someone
  • High-security passwords are required, which cannot be guessed by outside users
  • There is always a fear of losing control over the intranet
  • Sometimes document duplication may happen which can cause confusion among employees
  • You have to give access to multiple users, so you may find it hard to control this network.

Examples of Intranet:

Educational Intranet: It is generally found in a school, college, etc., For example, a school intranet is intended to allow teaching staff to communicate with each other and get information about upcoming updates such as exam dates, school functions, holidays, etc.

Real Estate Intranet: The intranet of a real estate company allows its sales team to have access to all important brochures, templates, and forms that they may need to close a sale. Employees also remain up to date with important events like meetings, training, sessions, etc. It can also be used to share motivational messages with the team.

Health Care Intranet: In the healthcare sector, in big hospitals, the Intranet helps healthcare professionals to work as a team to provide proper care and treatment to their patients. Doctors can share reports, treatment procedures, bills and claims can be settled easily without moving from one department to another department.

IT Sector Intranet: In the IT sector, three is always a lot of information that needs to be shared with all the employees in one go. It may be related to a project that needs to be completed within the given time frame, such as guidelines, terms and conditions, and rules that are to be followed while working on a project.

Difference between Intranet and Internet:

InternetIntranet
It is a medium such as optical fiber cable that connects billions of computers to establish a worldwide network.It is a small, private network as it belongs to a specific organization.
It has billions of users as it is a public network with a worldwide presence.It has limited users.
It is not as safe as an intranet.It is a safer network than the internet.
It can be assessed or used by anyone using an internet-enabled device, such as laptops, mobile phones, etc.Only authorized persons can use this network.
It offers a wide range of information, such as news, blogs, websites, etc.It offers limited information related to its organization’s work, policies, updates, etc.
It is not owned by a single person or an organization.It can be owned by a person or an organization.

Extranet

An extranet is a part of an organization’s intranet. It is a communication network that is based on internet protocols (TCP/IP). It provides controlled access to the firm’s intranet to its trading partners, customers, and other businesses. So, it is a private network that securely shares internal information and operations of a firm with authorized people outside the firm without giving access to the company’s entire network. The users are required to have IDs, passwords, and other authentication mechanisms to access this network.

Some of the benefits of extranet

  • It acts as a single interface between the company and its trading partners.
  • It automates the firm’s processes like automatically placing an order with suppliers when inventory drops.
  • It improves customer service by providing customers with a platform to resolve their queries and complaints.
  • It enables the firm to share information with trading partners without engaging in paper-based publishing processes.
  • It streamlines repetitive business processes, such as ordering from a vendor regularly.

How is Extranet Established?

It is set up in the form of a Virtual Private Network as it is prone to security threats due to the use of the internet to connect outsiders to an organization’s intranet. VPN can assure you a safe network in a public network such as the internet. The transmission control protocol (TCP) and internet protocol (IP) are used for the data transfer.

VPN assures secure transactions based on Internet Protocol Security Architecture (IPsec) protocol as it provides an extra security layer to TCP/IP protocol, which is used for data transfer in the extranet. In this layer, the IP packet is encapsulated to form a new IP packet, as shown below:

Furthermore, to provide more security to Intranet, the following two measures are also taken by an organization

  • Firewall: It prevents unauthorized users from accessing the extranet.
  • Passwords: It also prevents unauthorized users, including the company’s employees from accessing the data stored on its server.

Limitations of Extranet

  • Hosting: If you host extranet pages on your server, it requires a high bandwidth internet connection, which may be very expensive.
  • Security: You need extra firewall security if you host it on your server. It increases the workload and makes the security mechanism very complex.
  • Dependency: It is dependent on the internet as outsiders cannot access information without using the internet.
  • Less Interaction: It reduces the face-to-face interaction between customers, business partners, vendors, etc., which results in poor relationship building.

Difference between Intranet and Extranet:

IntranetExtranet
It is a private network, which cannot be accessed externally.It may not be called a private network, as it can be assessed externally. It provides limited access to authorized outside users such as vendors, partners, etc.
It connects the employees of the company.It connects the company’s employees with partners.
It is an independent network, not a part or extension of any other network.It is an additional part of the company’s Intranet.
Communication takes place only within the organization that owns the network.External users such as suppliers, customers, and partners are allowed to be a part of the intranet to get information, and updates, about the organization.

FAQ

What exactly is Internet?

  • The internet is a worldwide computer network that transmits a variety of data and media across interconnected devices. It works by using a packet routing network that follows Internet Protocol (IP) and Transport Control Protocol (TCP) [5].

How do I get an Internet connection?

  • If you want to access the internet at home, you’ll need an Internet Service Provider (ISP) and a router to connect to the ISP. ISPs often provide a router with their service. This means more than one computer or device in your house can use the broadband connection at the same time.

What is the Internet and what uses of the Internet?

  • The Internet is a virtual networking medium that can be connected and used on various devices these days. It enables the users to send, receive, collect, store, update, delete, and many other operations of the data across the world.

What are the 8 types of Internet?

Types of Internet Connections
  • Dial-Up. Dial-up access is cheap and slow and its modem connects once the computer dials up a number.
  • DSL Connection.
  • Cable Internet.
  • Wireless Networks.
  • Satellite Connection.
  • Fiber Optics.

Where is the Internet located?

  • Today, the internet is housed in the data centers located in the Washington-area suburb, which is the biggest data center market in the world. “The internet itself is comprised of these peering points that are housed inside data centers.

Can I get Wi-Fi without an Internet provider?

  • Public WiFi hotspot is a widely used option when one searches for – how to get WiFi without an Internet Provider. These hotspots can be found in popular public places like airports, coffee shops, malls, restaurants, and hotels and it allows you to access the Internet for free.

What do you need for the internet at home?

Equipment You’ll Need for Home Wi-Fi Setup
  1. Modem. A modem is a receiving device that converts data gathered through phone lines, fiber optic cables, or coaxial cables into a digital signal. …
  2. Router.
  3. Ethernet cable.
  4. Wireless device.

What are the 3 basic requirements to access the Internet?

  • There are three ingredients needed to access the Internet from a laptop or desktop computer: (1) an ISP, (2) a modem, and (3) a Web browser.

What is the importance of the internet?

  • The Internet allows people to improve the quality of their life. It opens access to previously inaccessible things. With almost three million users, the internet has been emerging as one of the most important tools of communication.

What are the main functions of the internet?

  • The Pew Internet Project has looked at how people use the internet in four major ways: to communicate, gather information, transact personal and professional business, and entertain themselves.

What is the internet most commonly used?

Most popular online activities of adult internet users in the United States as of November 2019
CharacteristicShare of internet users
Using text messaging or instant messaging92.3%
Using e-mail90.3%
Watching video online74.3%
Using online social networks73.7%

What are the 2 types of internet?

  • There are mainly two types of internet. The age-old dial-up internet connection, which has become almost irrelevant today, and broadband. Broadband covers all the different types of internet connection types that we will be discussing and includes DSL, Cable, Fiber Optic, and Satellite.

How many types of Wi-Fi are there?

  • The five Wi-Fi technologies are A, B, G, N, and AC. B and G use the 2.4 GHz frequency; A and AC use the 5 GHz frequency, and N uses both 2.4 and 5 GHz frequencies. Your choice for your home or business will come down to three: Wireless G, N, or AC. Routers that only support Wireless B are no longer manufactured.

What are the 3 types of internet?

  • Internet Connection Types: WiFi, Broadband, DSL, Cable.
  • Internet Connection Types: WiFi, Broadband, DSL, Cable – Xfinity

Who controls the Internet in the world?

  • Who owns the Internet? The answer is no one and everyone. The Internet is a network of networks. Each of the separate networks belongs to different companies and organizations, and they rely on physical servers in different countries with varying laws and regulations.

Can the Internet be destroyed?

  • Physical destruction, A vast behemoth that can route around outages and self-heal, the Internet has grown physically invulnerable to destruction by bombs, fires, or natural disasters — within countries, at least.

Who hosts the internet?

  • A computer participating in networks that use the Internet protocol suite may also be called an IP host. Specifically, computers participating in the Internet are called Internet hosts. Internet hosts and other IP hosts have one or more IP addresses assigned to their network interfaces.

How did the internet start?

  • The first workable prototype of the Internet came in the late 1960s with the creation of ARPANET, or the Advanced Research Projects Agency Network. Originally funded by the U.S. Department of Defense, ARPANET used packet switching to allow multiple computers to communicate on a single network.

Who owns the backbone of the internet?

  • Tier 1 internet service providers. This core is made up of individual high-speed fiber-optic networks that peer with each other to create the internet backbone. The individual core networks are privately owned by Tier 1 internet service providers (ISP), giant carriers whose networks are tied together

What’s the difference between WiFi and the internet?

  • Wi-Fi is more sort of a facility that gives wireless Internet access to smartphones, computers, or other devices within a selected range. On the other hand, the Internet is a language through which computers communicate (send and receive their information) via the Internet Protocol.

How do I get internet when away from home?

The Best Options for Internet Access when Traveling
  1. Use Your Mobile Provider.
  2. Buy a SIM Card for your trip.
  3. Use a Mobile Hotspot.
  4. Use a specialist roaming SIM.
  5. Consider Satellite Internet.
  6. Just use WiFi for Internet Access.

Can I make my Internet?

  • While it is very possible to make your internet connection, it’s very expensive and only worth the effort if you want to become an ISP yourself. As such, it’s best to only make your internet if you’re planning on bringing an entire community on board with you.

Who is the best Internet provider?

Our Best Internet Service Providers Rating
  • #1 Xfinity Internet.
  • #2 Verizon Internet.
  • #2 AT&T Internet.
  • #4 Spectrum Internet.
  • #4 Astound Broadband.
  • #4 Cox Internet.
  • #7 Mediacom Internet.
  • #7 HughesNet Internet.

Which device is required for the internet connection?

  • The primary piece of hardware you need is a modem. The type of Internet access you choose will determine the type of modem you need. Dial-up access uses a telephone modem, DSL service uses a DSL modem, cable access uses a cable modem, and satellite service uses a satellite adapter.

What is the impact of the internet on our daily life?

  • With the internet, one can see and talk to the person in the other corner of the world. Also, we get access to many things which make our life so much easier, we can order food or grocery or shop or chat or send emails which were not possible without the internet.

What are the 5 major applications of the Internet?

Internet Applications
  • Sending and receiving emails.
  • Searching and browsing information archives.
  • Copying files between computers.
  • Conducting financial transactions.
  • Navigating (in your car, smart scooter, smart bike, or other)
  • Playing interactive games.
  • Video and music streaming.

What are the 10 uses of the Internet?

Top 10 uses of the Internet
  • Electronic mail. At least 85% of the inhabitants of cyberspace send and receive e-mail. …
  • Research.
  • Downloading files.
  • Discussion groups.
  • Interactive games.
  • Education and self-improvement.
  • Friendship and dating.
  • Electronic newspapers and magazines.

What is the difference between WWW and Internet?

  • Difference Between WWW and Internet, In simple words, WWW is just a common point of connectivity for information sharing that is facilitated by a global network of computers. The internet, on the other hand, is a connection between computers and countless other devices that form a huge network of systems.

What is an example of the internet?

  • The Internet provides different online services. Some examples include Web – a collection of billions of webpages that you can view with a web browser. Email – is the most common method of sending and receiving messages online.

What is the full name of the internet?

  • Interconnected Network, the INTERNET stands for Interconnected Network is a network system that connects millions of web servers. The full meaning of the INTERNET can also be explained by the bunch of websites of different organizations, schools, institutions, and more. With the help of the INTERNET, the world is connected.

What is the fastest type of internet?

Fiber internet
  • Fiber internet is the fastest internet you can get. It uses bundled fiber-optic strands wrapped in a reflective case to transmit large amounts of data with light signals. Most fiber internet plans give you 1,000 Mbps speeds, although some providers can get you speeds of up to 2,000 Mbps or even 5,000 Mbps.

References

Doctor visit helper

Prepare before seeing a doctor

A simple rural-patient checklist to help you explain symptoms clearly, ask better questions, and avoid unsafe self-treatment.

Safety note: This is not a prescription or diagnosis. For severe symptoms, pregnancy danger signs, children with serious illness, chest pain, breathing difficulty, stroke-like weakness, or major injury, seek urgent care.

Which doctor may help?

Start with a registered doctor or the nearest qualified health center.

What to tell the doctor

  • Write when the problem started and how it changed.
  • Bring old prescriptions, investigation reports, and current medicines.
  • Write allergies, pregnancy status, diabetes, kidney/liver disease, and major past illnesses.
  • Bring one family member if the patient is weak, elderly, confused, or a child.

Questions to ask

  • What is the most likely cause of my symptoms?
  • Which danger signs mean I should go to hospital quickly?
  • Which tests are necessary now, and which can wait?
  • How should I take medicines safely and what side effects should I watch for?
  • When should I come for follow-up?

Tests to discuss

  • Vital signs: temperature, pulse, blood pressure, oxygen saturation
  • Basic physical examination by a clinician
  • CBC, urine test, blood sugar, or imaging only when clinically needed

Avoid these mistakes

  • Do not use antibiotics, steroid tablets/injections, or strong painkillers without proper medical advice.
  • Do not hide pregnancy, kidney disease, ulcer, allergy, or blood thinner use.
  • Do not delay emergency care when danger signs are present.

Medicine safety and first-aid guide

This section is for patient education only. It does not replace a doctor, pharmacist, or emergency care.

Safe first steps

  • Avoid heavy lifting, sudden bending, and prolonged bed rest.
  • Use comfortable posture and gentle movement as tolerated.
  • Discuss physiotherapy, X-ray, or MRI only when clinically needed.

OTC medicine safety

  • For mild back pain, pain-relief medicine may be discussed with a doctor or pharmacist.
  • Avoid repeated painkiller use if you have kidney disease, stomach ulcer, uncontrolled blood pressure, or are taking blood thinners.

Avoid these mistakes

  • Do not start antibiotics without a proper medical decision.
  • Do not use steroid tablets or injections casually for quick relief.
  • Do not delay emergency care because of home remedies.

Get urgent help if

  • Back pain with leg weakness, numbness around private area, loss of urine/stool control, fever, cancer history, or major injury needs urgent care.
Medicine names, dose, and timing must be decided by a qualified clinician or pharmacist after checking age, pregnancy, allergy, other diseases, and current medicines.

For rural patients and family caregivers

Patient health record and symptom diary

Write your symptoms, medicines already taken, test results, and questions before visiting a doctor. This note stays on your device unless you print or copy it.

Doctor to discuss: Doctor / qualified healthcare provider
Tests to discuss with doctor
  • Basic vital signs: temperature, pulse, blood pressure, oxygen level if needed
  • Relevant blood, urine, imaging, or specialist tests only after clinical assessment
Questions to ask
  • What is the most likely cause of my symptoms?
  • Which warning signs mean I should go to emergency care?
  • Which tests are really needed now?
  • Which medicines are safe for my age, pregnancy status, allergy, kidney/liver/stomach condition, and current medicines?

Emergency warning signs such as chest pain, severe breathing difficulty, sudden weakness, confusion, severe dehydration, major injury, or loss of bladder/bowel control need urgent medical care. Do not wait for online information.

Safe pathway to proper treatment

Care roadmap for: Internet

Use this simple roadmap to understand the next safe steps. It is educational and does not replace examination by a doctor.

Go to emergency care if you notice:
  • Severe or rapidly worsening symptoms
  • Breathing difficulty, chest pain, fainting, confusion, severe weakness, major injury, or severe dehydration
Doctor / service to discuss: Qualified healthcare provider; specialist depends on symptoms and examination.
  1. Step 1

    Check danger signs first

    If danger signs are present, seek emergency care and do not wait for online information.

  2. Step 2

    Record the symptom story

    Write when symptoms started, severity, medicines already taken, allergies, pregnancy status, and test results.

  3. Step 3

    Visit a qualified clinician

    A doctor, nurse, or qualified healthcare provider can examine you and decide which tests or treatment are needed.

  4. Step 4

    Do only useful tests

    Do tests after clinical assessment. Avoid unnecessary tests, random antibiotics, or repeated medicines without diagnosis.

  5. Step 5

    Follow up and return early if worse

    If symptoms worsen, new warning signs appear, or treatment is not helping, return for review quickly.

Rural patient practical tips
  • Take a written symptom diary and all previous prescriptions/test reports.
  • Do not hide medicines already taken, even herbal or over-the-counter medicines.
  • Ask which warning signs mean urgent referral to hospital.

This roadmap is for education. A real diagnosis and treatment plan requires history, examination, and clinical judgment.

RX Patient Help

Ask a health question safely

Write your symptom story. A health professional or site editor can review it before any answer is prepared. This box is not for emergency care.

Emergency first: Severe chest pain, breathing trouble, unconsciousness, stroke signs, severe injury, heavy bleeding, or rapidly worsening symptoms need urgent local medical care now.

Frequently Asked Questions

Why is the Internet Called a Network?

Internet is called a network as it creates a network by connecting computers and servers across the world using routers, switches and telephone lines, and other communication devices and channels. So, it can be considered a global network of physical cables such as copper telephone wires, fiber optic cables, tv cables, etc. Furthermore, even wireless connections like 3G, 4G, or Wi-Fi make use of these cables to access the Internet. The Internet is different from the World Wide Web as…

How does the internetwork?

Before understanding this let us understand some basics related to the internet: The internet works with the help of clients and servers. A device such as a laptop, which is connected to the internet is called a client, not a server as it is not directly connected to the internet. However, it is indirectly connected to the internet through an Internet Service Provider (ISP) and is identified by an IP address, which is a string of numbers. Just like you…

Advantages of the Internet:Instant Messaging: You can send messages or communicate to anyone using the internet, such as email, voice chat, video conferencing, etc. Get directions: Using GPS technology, you can get directions to almost every place in a city, country, etc. You can find restaurants, malls, or any other service near your location. Online Shopping: It allows you to shop online such as you can be clothes, shoes, book movie tickets, railway tickets, flight tickets, and more. Pay Bills: You can pay your bills online, such as electricity bills, gas bills, college fees, etc. Online Banking: It allows you to use internet banking in which you can check your balance, receive or transfer money, get a statement, request a checkbook, etc. Online Selling: You can sell your products or services online. It helps you reach more customers and thus increases your sales and profit. Work from Home: In case you need to work from home, you can do it using a system with internet access. Today, many companies allow their employees to work from home. Entertainment: You can listen to online music, watch videos or movies, and play online games. Cloud computing: It enables you to connect your computers and internet-enabled devices to cloud services such as cloud storage, cloud computing, etc. Career building: You can search for jobs online on different job portals and send your CV through email if required.IntranetThe intranet is a private network that belongs to a particular organization. It is designed for the exclusive use of an organization and its associates, such as employees, customers, and other authorized people. It offers a secure platform to convey information and share data with authorized users. Confidential information, database, links, forms, and applications can be made available to the staff through the intranet. So, it is like a private internet or an internal website that is operating within an organization to provide its employees access to its information and records. Each computer in the intranet is identified by a unique IP Address.It is based on internet protocols (TCP/IP) and is protected from unauthorized access with firewalls and other security systems. The firewall monitors the incoming and outgoing data packets to ensure they don't contain unauthorized requests. So, users on the intranet can access the internet, but internet users can't access the intranet if they are not authorized for it. Furthermore, to access the intranet, the authorized user is required to be connected to its LAN (Local Area Network).Some of the benefits of the intranet are:It is cheap and easy to implement and run and is safer than the internet and extranet It streamlines communication that enables the company to share its data, information, and other resources among employees without any delay. The entire staff can receive the company's announcements, ask questions, and access internal documents. It provides a secure space to store and develop applications to support business operations. It improves the efficiency of the company by speeding up workflow and reducing errors. Thus, it helps achieve targets by completing the tasks on time. It offers a testing platform for new ideas before they are uploaded on the company's internet webpage. Thus, it helps maintain the credibility of the company Information is shared in real-time, or updates are reflected immediately to all the authorized users. Modern intranets also offer a mobile app that allows employees to stay connected on the go. It aids in project management and tracking workflow and teams' progress. It can work with mobile devices, which means it can provide information that exists on the intranet directly to mobile devices of employees such as phones, tablets, etc. It can also be used to motivate employees, facilitate employee recognition, and reward them for performing beyond expectations.How the Intranet Works:Intranet comprises three components: a web server, an intranet platform, and applications. The web server is hardware that contains all the intranet software and data. It manages all requests for files hosted over the server and finds the requested files and then delivers them to the user's computer. The intranet platform, which is software, allows communication tools, collaboration apps, and databases to work seamlessly with each other. It is tailored to the specific needs of a business.The applications are required to enable users to work smoothly. They are the computing tools that allow users to do their work, communicate, coordinate with each other and retrieve and store information.Furthermore, the user who wants to access the intranet is required to have a special network password and should be connected to the LAN. A user who is working remotely can gain access to the intranet through a virtual private network (VPN) that allows them to sign in to the intranet to access the information.Disadvantages of Intranet:It may be costly to set up an Intranet due to hidden costs and complexity. If the firewall does not work properly or is not installed, it can be hacked by someone High-security passwords are required, which cannot be guessed by outside users There is always a fear of losing control over the intranet Sometimes document duplication may happen which can cause confusion among employees You have to give access to multiple users, so you may find it hard to control this network.Examples of Intranet:Educational Intranet: It is generally found in a school, college, etc., For example, a school intranet is intended to allow teaching staff to communicate with each other and get information about upcoming updates such as exam dates, school functions, holidays, etc.Real Estate Intranet: The intranet of a real estate company allows its sales team to have access to all important brochures, templates, and forms that they may need to close a sale. Employees also remain up to date with important events like meetings, training, sessions, etc. It can also be used to share motivational messages with the team.Health Care Intranet: In the healthcare sector, in big hospitals, the Intranet helps healthcare professionals to work as a team to provide proper care and treatment to their patients. Doctors can share reports, treatment procedures, bills and claims can be settled easily without moving from one department to another department.IT Sector Intranet: In the IT sector, three is always a lot of information that needs to be shared with all the employees in one go. It may be related to a project that needs to be completed within the given time frame, such as guidelines, terms and conditions, and rules that are to be followed while working on a project.Difference between Intranet and Internet:Internet IntranetIt is a medium such as optical fiber cable that connects billions of computers to establish a worldwide network. It is a small, private network as it belongs to a specific organization.It has billions of users as it is a public network with a worldwide presence. It has limited users.It is not as safe as an intranet. It is a safer network than the internet.It can be assessed or used by anyone using an internet-enabled device, such as laptops, mobile phones, etc. Only authorized persons can use this network.It offers a wide range of information, such as news, blogs, websites, etc. It offers limited information related to its organization's work, policies, updates, etc.It is not owned by a single person or an organization. It can be owned by a person or an organization.ExtranetAn extranet is a part of an organization's intranet. It is a communication network that is based on internet protocols (TCP/IP). It provides controlled access to the firm's intranet to its trading partners, customers, and other businesses. So, it is a private network that securely shares internal information and operations of a firm with authorized people outside the firm without giving access to the company's entire network. The users are required to have IDs, passwords, and other authentication mechanisms to access this network.Some of the benefits of extranetIt acts as a single interface between the company and its trading partners. It automates the firm's processes like automatically placing an order with suppliers when inventory drops. It improves customer service by providing customers with a platform to resolve their queries and complaints. It enables the firm to share information with trading partners without engaging in paper-based publishing processes. It streamlines repetitive business processes, such as ordering from a vendor regularly.How is Extranet Established?

It is set up in the form of a Virtual Private Network as it is prone to security threats due to the use of the internet to connect outsiders to an organization's intranet. VPN can assure you a safe network in a public network such as the internet. The transmission control protocol (TCP) and internet protocol (IP) are used for the data transfer. VPN assures secure transactions based on Internet Protocol Security Architecture (IPsec) protocol as it provides an extra security…

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