Internet services Protocol & connection (Internet & Web Designing)
Internet services Protocol & connection (Internet & Web Designing)
Internet service provider(ISP)
Internet service providers (ISPs) are entities that offer Internet connections and services to both individuals and organizations. Apart from granting access to the Internet, ISPs may furnish software packages (like browsers), e-mail accounts, and a personal website or homepage.
ISPs have the capability to host websites for businesses and even construct the websites from scratch.
ISPs are interconnected with one another via network access points, which are public network facilities situated on the Internet backbone.
 |
| Internet services Protocol & connection |
ISPs utilize various technologies such as analog telephone lines (dial-up), DSL, cable, satellite, Wi-Fi, fiber optics, and other mediums to establish connectivity. Cable and telephone providers often double as ISPs due to their infrastructure's ability to support Internet traffic.
How ISP works
How internet service provider works
Tier 1 Internet service providers are the top-tier ISPs that have access to all Internet networks through network peering agreements without any payment involved.
They are like the major highways of the Internet, connecting every part of the World Wide Web. Examples of Tier 1 ISPs include Vodacom, Bharti, Deutsche Telekom, British Telecommunications, and Verizon.
These Tier 1 ISPs provide access to their networks to Tier 2 ISPs, who in turn offer Internet access to businesses and individual users. Occasionally, Tier 1 ISPs may also directly sell Internet access to organizations and individuals.
Type of connection
Dialup-->Click Here For Dialup connection
Leased Lines-->Click Here For Leased Line connection
VSAT(Very Small Aperture Terminal)
A VSAT user needs a device to facilitate communication between the user's computer and an outdoor antenna equipped with a transceiver. This transceiver is responsible for transmitting and receiving signals to and from a satellite transponder through a ground station referred to as a 'hub', which is linked to the satellite. In this communication setup, all transmissions are initially sent to the hub station for retransmission via the satellite, ultimately reaching the VSAT of the end user.
 |
| How VSAT Works |
Uniform resource locater(URL)
 |
| How URL Works |
A Uniform Resource Locator (URL) is a specific address that identifies a unique resource on the Internet. This resource can be a webpage, a document, an image, or any other type of content. While each valid URL should point to a distinct resource, there are exceptions in practice. For instance, a URL may lead to a resource that no longer exists or has been relocated. The responsibility of managing both the resource and its associated URL lies with the owner of the web server. Here are a few examples of URLs:
1. https://developer.mozilla.org
2. https://developer.mozilla.org/en-US/docs/Learn/
3. https://developer.mozilla.org/en-US/search?q=URL
Internet services
The main services provided by internet are
 |
| Internet services |
Communication services
These service helps the user to communicate, these services can include following
• Email
• Internet chatting(Text, Voice, Video)
• Telnet
Information Retrievals services
These services helps the user to retrieval of information from the web, the main services can include
• Internet Search
• File Transfer
• Wikipedia
Web services
A web service comprises open protocols and standards that facilitate the exchange of data between different applications or systems. Software applications developed in different programming languages and operating on diverse platforms can utilize web services to share data across computer networks, such as the Internet, resembling inter-process communication within a single computer.
World wide web
The World Wide Web, also known as the web, is an internet-based global information system that provides access to multimedia content from computers worldwide. It includes video, interactive multimedia, live audio, as well as traditional data formats like text documents and photographs.
To know more about WWW Click Here For www
INTERNET PROTOCOLS
What Are Protocol
In the field of computer science, a protocol refers to a collection of regulations or steps that govern the transfer of data among electronic devices, like computers. For effective communication between computers, there needs to be a predetermined understanding on the format of the information and the methods for sending and receiving it.
The main protocols are
FTP
DNS
TCP
UDP
HTTP
IP
Telnet
FTP(File Transfer Protocol)
FTP, which stands for File Transfer Protocol, is a tool used for transferring files over the Internet. It is commonly utilized by web developers to update websites by uploading new versions. In contrast to HTTP, which is used for displaying files in a browser, FTP is specifically designed for transferring files between computers. Users can transfer files from their computer to a remote computer, like a web server, or from the remote computer to their local computer.
File transfer protocol(FTP) working
 |
| how FTP Works |
FTP, or File Transfer Protocol, is a widely utilized method for transferring various types of data over the Internet. It is commonly employed for tasks such as transferring web pages, software updates, and downloading files from other servers to a computer.
The process involves the client establishing a control connection to the server using TCP.
Subsequently, the client sends a username and password to the server, followed by commands to navigate to the desired directory on the server.
The client then requests a data connection mode from the server, and both the client and server establish a data connection using TCP.
Through this data connection, the client can send commands to transfer files to or from the server.
Once the file transfer is complete, the client closes the data connection.
Finally, the client sends a command to terminate the control connection, effectively concluding the FTP session.
Domain name system(DNS)
What is a Domain Name?
A domain name is a distinct name that is designated to a website. Every website on the Internet must have a unique domain name. This uniqueness allows users to easily access your website by simply typing in the domain name.
Without a domain name, the only way to access a website would be through its IP address. An IP address is also unique, but it is much more difficult for humans to remember compared to a domain name. For instance, an IP address could look like this: 8.8.8.8.
The IP address mentioned above is associated with Google.com (at least, it was at the time of writing this blog). If you enter this IP address into your web browser, Google's homepage will appear. If you encounter a blank page or an error message, it is likely that the IP address no longer leads to a website.
how does DNS work
Upon entering a domain in the browser, the browser immediately forwards the domain to the DNS server.
If the DNS server has the IP address of the domain, it sends the address to the browser. However, if the DNS server does not have the address, it will pass the domain to another DNS server. This process repeats until the IP address of the domain is identified. Once the IP address is obtained, the browser navigates to that address and displays the website.
Transmission Control Protocol(TCP)
What is TCP?
TCP, short for Transmission Control Protocol, is a widely adopted communications standard that facilitates the exchange of messages between application programs and computing devices over a network. Its primary purpose is to transmit packets of data across the internet and ensure the successful delivery of information and messages across various networks.
As one of the most commonly utilized protocols in digital network communications, TCP plays a crucial role in ensuring end-to-end data delivery. It achieves this by organizing the data in a manner that allows it to be efficiently transmitted between a server and a client. Additionally, TCP guarantees the integrity of the data being communicated over the network.
Prior to transmitting data, TCP establishes a connection between the source and destination, making it a connection-oriented protocol. This connection remains active throughout the communication process. TCP further enhances data transmission by breaking down large amounts of data into smaller packets, all while maintaining data integrity.
Overall, TCP serves as a reliable and efficient means of transmitting data and messages across networks, contributing to the seamless functioning of digital communications.
 |
| TCP |
User Datagram Protocol (UDP)
The User Datagram Protocol (UDP) is a lightweight data transport protocol that operates on top of IP.
UDP offers a way to identify corrupt data in packets, but it does not address other issues like lost or out-of-order packets. This is why UDP is sometimes referred to as the Unreliable Data Protocol.
UDP is straightforward yet efficient, especially when compared to other IP-based protocols. It is commonly utilized for time-sensitive applications, such as real-time video streaming, where speed takes precedence over accuracy.
UDP is a connectionless protocol that facilitates data streaming. Once a UDP connection is established, there is no distinct beginning, middle, or end to the communication. Data simply flows between the two systems. UDP is a basic protocol used in scenarios where speed is crucial, without verifying the receipt of UDP packets.
 |
| UDP |
Hypertext Transfer Protocol(HTTP)
What is HTTP and how it works
HTTP, which stands for Hypertext Transfer Protocol, is the standard protocol used for transferring data over the internet. It is a crucial component of the Internet protocol suite, outlining the commands and services necessary for transmitting webpage data.
HTTP operates on a server-client model, where the client can be a home computer, laptop, or mobile device. The HTTP server, on the other hand, is typically a web host that runs web server software like Apache or IIS.
When you visit a website, your browser sends a request to the relevant web server, which then responds with an HTTP status code. If the URL is valid and the connection is established, the server will send your browser the webpage along with any related files.
HTTP is primarily used for fetching resources like HTML documents, forming the basis of data exchange on the Web. As a client-server protocol, requests are typically initiated by the recipient, often the Web browser.
The complete document is reconstructed from various sub-documents retrieved, including text, layout descriptions, images, videos, scripts, and more.
 |
| How HTTP Works |
Internet Protocol
What is IP?
The Internet Protocol (IP) serves as the mechanism for transmitting data between devices over the internet. Each device possesses a unique IP address, which allows it to communicate and exchange data with other internet-connected devices.
IP plays a crucial role in facilitating the exchange of data packets between applications and devices. It acts as the primary communications protocol, establishing the standards and regulations for data and message exchange among computers within a single network or across multiple interconnected networks.
This is achieved through the implementation of the Internet Protocol Suite (TCP/IP), which comprises a set of communication protocols organized into four abstraction layers.
IP functions as the primary protocol within the internet layer of TCP/IP. Its primary objective is to efficiently deliver data packets from the source application or device to the intended destination, utilizing methods and structures that incorporate address information within the data packets.
Telnet
What is Telnet?
Telnet is a protocol that allows for bidirectional interactive communication through a virtual terminal connection on the Internet or local area network.
Telnet is a protocol designed for establishing a command line interface on a remote computer, usually a server.
FTP is often used in conjunction with Telnet for transferring data files.
Telnet enables various activities on a server, such as file editing, program execution, and email checking.
Telnet lacks security measures and encrypts data, making it vulnerable to unauthorized access to usernames, passwords, and other sensitive information transmitted in plaintext during a session.
The Telnet protocol is supported on Windows OS and Unix-like systems, including Mac, Linux, and others.
Conclusion
In conclusion , this blog cover a brief description of following topics
ISP, type of connection, URL, internet services & protocol, FTP, DNS, TCP, UDP, IP, HTTP, TELNET.
In summary, I can say that these topics are related to Fundamental of Computer and very helpful for those who pursuing BCA,PGDCA, DCA ,'O' Level Courses from different universities
I hope this blog helps you a lot Happy learning....
FAQ
What are ISP ?
Internet service providers (ISPs) are entities that offer Internet connections and services to both individuals and organizations.
What is URL ?
A Uniform Resource Locator (URL) is a specific address that identifies a unique resource on the Internet.
What Are Protocol ?
In the field of computer science, a protocol refers to a collection of regulations or steps that govern the transfer of data among electronic devices, like computers.
What is FTP ?
FTP, which stands for File Transfer Protocol, is a tool used for transferring files over the Internet. It is commonly utilized by web developers to update websites by uploading new versions.
What is DNS ?
A domain name is a distinct name that is designated to a website. Every website on the Internet must have a unique domain name.
What is TCP ?
TCP, short for Transmission Control Protocol, is a widely adopted communications standard that facilitates the exchange of messages between application programs and computing devices over a network.
What is HTTP ?
HTTP, which stands for Hypertext Transfer Protocol, is the standard protocol used for transferring data over the internet.
What is IP ?
The Internet Protocol (IP) serves as the mechanism for transmitting data between devices over the internet.
Post a Comment