Definition

 

Browser

Web browsers are essential tools for accessing the internet. Knowing how they work allows you to browse safely, quickly, and efficiently. It also helps you choose the most appropriate browser for your needs, understand how to protect your privacy, manage extensions, and make the most of online resources. In short, knowing how to use a browser effectively improves your daily digital experience.

 

        The web is a vast and powerful tool. Over the course of a few decades, the internet has changed the way we work, the way we play and the way we interact with one another. Depending on how it’s used, it bridges nations, drives commerce, nurtures relationships, drives the innovation engine of the future and is responsible for more memes than we know what to do with. (TechTarget Contributor, 2019)



 

IP Address

IP (Internet Protocol) addresses are essential for devices to communicate on a network. Knowing them allows you to identify and locate devices, making it easier to connect to the internet or local networks. It's also key to troubleshooting connectivity issues, configuring networks, protecting computer security, and efficiently accessing services. In short, understanding IP addresses improves technology use and network management.

         An Internet Protocol (IP) address is a unique numerical identifier for every device or network that connects to the internet. Typically assigned by an internet service provider (ISP), an IP address is an online device address used for communicating across the internet. (Yasar, 2023)




 

DNS

El DNS (Sistema de Nombres de Dominio) traduce los nombres de las páginas web (como google.com) en direcciones IP que los dispositivos pueden entender. Conocer cómo funciona el DNS permite entender cómo accedemos a los sitios web, resolver problemas de conexión, mejorar la velocidad de navegación y reforzar la seguridad en línea. Es clave para una experiencia más eficiente y segura en Internet.

 

        DNS is a hierarchical and distributed naming system that translates domain names into IP addresses. When you type a domain name like www.geeksforgeeks.org into your browser, DNS ensures that the request reaches the correct server by resolving the domain to its corresponding IP address.

Without DNS, we’d have to remember the numerical IP address of every website we want to visit, which is highly impractical. DNS simplifies the process by allowing us to use user-friendly names while still maintaining the performance and scalability required for modern internet operations. (geeksforgeeks, 2025)



 

Domain

A domain is the unique name that identifies a website on the Internet (such as example.com). Knowing about domains is important for creating and managing websites, establishing an online presence, and facilitating access to information. It also helps protect your digital identity and choose memorable names for users. In short, understanding domains is essential for successfully navigating the digital world.

 

        a domain name simplifies browsing the internet and accessing a specific website. Instead of entering a long IP address, (a complex string of numbers and letters computers use to recognize a website – e.g. 192.153.2.46), a domain name is a simpler combination of letters, numbers and symbols typed into browser to access a specific web address directly. (Miller, 2025)




 

Firewall

A firewall is a security tool that controls network traffic to protect devices and data from unauthorized access. Understanding firewalls is essential for keeping information secure, preventing cyberattacks, and controlling what enters and exits a network. In short, it helps protect our privacy and security when using the Internet.

 

        A firewall is a network security device that separates a trusted internal network from an external network deemed untrustworthy, such as the internet. It regulates incoming and outgoing network traffic based on preset security rules. Firewalls are paramount in shielding networks from unauthorized access, harmful activities, and potential threats, and can exist as hardware, software, software-as-a-service (SaaS), or public or private (virtual) cloud. (CISCO, 2025)

 


Hosting

Hosting is the service that allows you to store and publish websites on the Internet. Knowing about hosting is important for choosing the right plan, ensuring website availability, guaranteeing good speed, and protecting your data. It also allows for better management of your website and the resources it needs to function properly. In short, it is key to having an efficient and secure online presence

        Web Hosting is like renting space on the Internet or the web browser; it's equivalent to allocating server space on the World Wide Web. Which secures your dedicated environment for your web domain. Web hosting provides a space to keep your website's data on a server. (geeksforgeeks, 2025)







 

HTMT

The DNS (Domain Name System) translates website names (like google.com) into IP addresses that devices can understand. Understanding how the DNS works helps you understand how we access websites, resolve connection issues, improve browsing speed, and strengthen online security. It's key to a more efficient and secure internet experience.

 

        HTML stands for Hyper Text Markup Language, which is the core language used to structure content on the web. It organizes text, images, links, and media using tags and elements that browsers can interpret. As of 2025, over 95% of websites rely on HTML alongside CSS and JavaScript, making it a fundamental tool in modern web development. (geeksforgeeks, 2025)

 



HTTP

HTTP (Hypertext Transfer Protocol) is the protocol that enables communication between browsers and websites. Understanding HTTP helps you understand how data is transmitted on the Internet, how web pages work, and how to maintain security while browsing. It's also useful for troubleshooting loading or connection issues. In short, it's key to understanding and using the web effectively.


        http stands for Hypertext Transfer Protocol, and it’s the system that allows communication between web browsers (like Google Chrome or Firefox) and websites. When you visit a website, your browser uses HTTP to send a request to the server hosting that site, and the server sends back the data needed to display the page. (geeksforgeeks, 2025)



 


Router

A router is the device that allows multiple computers to connect to the Internet and to each other within a network. Understanding how it works helps you improve your connection speed, troubleshoot network issues, configure Wi-Fi security, and optimize your Internet use at home or at work. In short, understanding your router is essential for a stable, fast, and secure connection.

"Network devices are physical devices that allow hardware on a computer network to communicate and interact with one another." (geeksforgeeks, 2024)





 

LAN

LAN (Local Area Network) is a network that connects multiple devices within a limited area, such as a home, office, or school. Understanding LANs allows you to share resources (such as files, printers, and the Internet), improve internal communication, and troubleshoot connectivity issues. In short, understanding how a LAN works helps you make the most of technology in small spaces.

        A local area network (LAN) is a collection of devices connected together in one physical location, such as a building, office, or home. A LAN can be small or large, ranging from a home network with one user to an enterprise network with thousands of users and devices in an office or school. (CISCO, 2025)



 

MAN

MAN (Metropolitan Area Network) is a network that connects multiple LANs within a city or large geographic area. Understanding MAN is important to understand how businesses, institutions, or buildings in the same area are connected.

 

        It helps improve communication, share resources on a larger scale, and offer faster and more efficient services. In short, understanding MAN is key to managing modern urban networks.

typically a city. It provides high-speed data communication services such as video, audio, and data transfer between multiple LANs (Local Area Networks) and WANs (Wide Area Networks). The main purpose of a MAN is to connect different LANs in a city to share resources and exchange data, as well as to provide internet access to users. A MAN typically covers a geographic area of several kilometers and is larger than a LAN but smaller than a WAN. (CISCO, 2025)

 

 website 

A website is a set of web pages accessible from the Internet. Knowing about websites is essential for creating, managing, and navigating sites effectively. It helps develop an online presence, share information, offer services, and reach more people. In short, understanding how a website works is key in today's digital world, both for personal and professional use.

        website is a collection of many web pages, and web pages are digital files that are written using HTML(HyperText Markup Language). To make your website available to every person in the world, it must be stored or hosted on a computer connected to the Internet round a clock. (geeksforgeeks, 2025)






 

Streaming

Streaming is a technology that allows you to watch or listen to content (such as videos, music, or live streams) without having to download it. Understanding streaming is important to make the most of digital platforms, enjoy content in real time, and understand bandwidth usage and service quality. In short, understanding streaming improves the online multimedia experience.

        Streaming media is video or audio content sent in compressed form over the internet and played immediately over a user's device, rather than being saved to the device hard drive or solid-state drive. During the streaming process, the media file that's played on the user's device is retrieved from a remote location and transmitted continuously over the internet using a wired or wireless connection. (Awati, 2022)

 


SSL

SSL (Secure Sockets Layer) is a security protocol that protects information sent between a browser and a website. Understanding SSL is important for identifying secure websites (using "https"), protecting personal data, and preventing fraud or cyberattacks. In short, understanding SSL helps you browse the internet more securely and reliably.

        SSL or Secure Sockets Layer is an Internet security protocol that encrypts data to keep it safe. It was created by Netscape in 1995 to ensure privacy, authentication, and data integrity in online communications. SSL is the older version of what we now call TLS  (Transport Layer Security).



TLS

TLS (Transport Layer Security) is a security protocol that protects information transmitted over the Internet. It's an enhanced version of SSL. Understanding TLS is important because it ensures that data travels encrypted, securely, and privately, preventing third parties from intercepting it. In short, understanding TLS is key to browsing, shopping, and communicating online with confidence

 

        Transport Layer Security (TLS) is an Internet Engineering Task Force (IETF) standard protocol that provides authentication, privacy and data integrity between two communicating computer applications.

        TLS is the most widely deployed security protocol in use today and is best suited for web browsers and other applications that require data to be securely exchanged over a network. (techtarget, 2025)



 

URL

A URL (Uniform Resource Locator) is the address used to access web pages. Knowing about URLs is important for identifying safe sites, understanding how information is organized on the Internet, and avoiding fake or dangerous links. In short, knowing how a URL works helps you navigate more safely, quickly, and efficiently.

         URL (Uniform Resource Locator, also called a web address) is a unique identifier used to locate a resource on the internet. URLs consist of multiple parts -- including a protocol and domain name -- that tell web browsers how and where to retrieve a resource.

        End users use URLs by typing them directly into a browser address bar or by clicking a hyperlink found on a webpage, bookmark list, email or another application. (Burke, 2024)



 

VPN

A VPN (Virtual Private Network) allows you to connect to the internet securely and privately by hiding your IP address and encrypting your data. Understanding VPNs is important for protecting your privacy, avoiding tracking, accessing restricted content, and using public networks more securely. In short, understanding how to use a VPN helps you browse with greater freedom and protection.

 

        A VPN (virtual private network) is a service that creates a secure, encrypted connection between a user's device and a remote server, allowing private and anonymous internet browsing. VPNs protect data from hackers, mask IP addresses, and are commonly used for secure remote access and bypassing geographic restrictions. (Gillis, 2024)

 



WAN

A WAN (Wide Area Network) is a network that connects devices and networks over long distances, such as between cities or countries. Understanding WANs is important for understanding how the Internet works, how large businesses communicate, and how data is shared globally. In short, understanding WANs allows you to understand the structure of modern networks and their global reach.

 

        In its simplest form, a wide-area network (WAN) is a collection of local-area networks (LANs) or other networks that communicate with one another.  A WAN is essentially a network of networks, with the Internet the world's largest WAN. (CISCO, 2025)

 



 

DHCP

DHCP (Dynamic Host Configuration Protocol) is a system that automatically assigns IP addresses to devices on a network. Understanding DHCP is important because it makes connecting to the Internet easier, prevents IP conflicts, and improves network management. In short, understanding DHCP helps maintain a tidy, efficient, and user-friendly network.


        DHCP (Dynamic Host Configuration Protocol) is a network management protocol used to dynamically assign an Internet Protocol (IP) address to any device on a network so it can communicate. DHCP automates and centrally manages these configurations rather than requiring network administrators to assign IP addresses manually to all network devices. Small local networks and large enterprise networks can both implement DHCP. (Gillis, techtarget, 2025)

 


ETHERNET

Ethernet is a technology that allows devices to connect to a local area network using cables. Understanding Ethernet is important because it offers a fast, stable, and secure connection, ideal for homes, offices, and environments that require high speeds. In short, understanding Ethernet helps improve network performance and reliability.

 

        Ethernet is the traditional technology for connecting devices in a wired local area network (LAN) or wide area network. It enables devices to communicate with each other via a protocol, which is a set of rules or common network language. (CISCO, 2023)

 


ISP

An ISP (Internet Service Provider) is the company that provides internet access. Knowing about ISPs is important for choosing the best service based on speed, price, and coverage. It also helps you understand how a network connects to the internet and how to troubleshoot connection issues. In short, knowing about ISPs leads to a better online experience.


        An ISP (internet service provider) is a company that provides individuals and organizations access to the internet and other related services. An ISP has the equipment and the telecommunication line access required to have a point of presence on the internet for the geographic area served. (Gillis, techtarget, 2022)



 

Wi-Fi

Wi-Fi is a technology that allows you to connect to the internet without cables. Understanding Wi-Fi is important for setting up wireless networks, improving the signal, securing your connection, and troubleshooting connectivity issues. In short, understanding how Wi-Fi works helps you have a more convenient, faster, and secure online experience

 

        Wi-Fi is a wireless networking technology that allows devices such as computers (laptops and desktops), mobile devices (smart phones and wearables), and other equipment (printers and video cameras) to interface with the Internet. It allows these devices--and many more--to exchange information with one another, creating a network. (CISCO, 2025)




 

Access Point

An access point is a device that extends a Wi-Fi signal to connect more devices to a network. Understanding access points is important for improving wireless coverage, avoiding dead zones, and maintaining a stable connection in large spaces. In short, understanding their use helps you have a more efficient network with better range.

 

        A wireless access point (wireless AP) is a network device that transmits and receives data over a wireless local area network (WLAN), serving as the interconnection point between the WLAN and a fixed wire network. Conceptually, an AP is like an Ethernet hub, but instead of relaying LAN frames only to other 802.3 stations, an AP relays 802.11 frames to all other 802.11 or 802.3 stations in the same subnet. When a wireless device moves beyond the range of one AP, it is handed over to the next AP. (Kelly, 2022)



 

Shipping Protocol  

The Shipping Protocol establishes the rules and procedures for packaging, labeling, transporting, and delivering products. Understanding these protocols is important to ensure correct deliveries, avoid errors, comply with regulations, and provide good customer service. In short, understanding the Shipping Protocol improves the efficiency and safety of logistics processes.

 

        This shipping protocol is for sending DNA, amplicons, and primers. Following this protocol will ensure that plates and centrifuge tubes arrive to their destination without damage. Proper shipping will prevent samples from being damaged or destroyed during transit and expedite the processing steps upon arrival. This advice is compiled 




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