Internet and E-Commerce Basics

E-Commerce

• Uses the internet to sell products and services through online platforms like Amazon and eBay.

Education

• Online learning platforms and educational resources enable remote learning, giving students access to a wide range of information and instructional materials.

Importance of the Internet

• Influences nearly every aspect of daily activities, including work, education, entertainment, and social interactions.
• Plays a critical role in driving innovation, fostering global connectivity, and supporting the digital economy.

Connecting to the Internet

• Can be done using a variety of methods, including Wi-Fi, Ethernet, and mobile hotspots.

Wi-Fi Connection

• Most common way to connect to the internet wirelessly.
• Requires turning on the Wi-Fi feature on the device, selecting a network, entering the password (if required), and verifying the connection.
• Steps are similar across Windows PC, Mac, and smartphones.

Ethernet Connection

• Wired method that connects the device to the internet.
• Requires an Ethernet port, plugging in the cable, and verifying the connection.
• Automatic connection often occurs once the cable is plugged in.

Mobile Hotspot Connection

• Using a mobile device as a hotspot to share its internet connection with other devices.
• Requires turning on the hotspot feature on the mobile device and connecting to it on other devices using the provided password.
• Works well in areas without wired infrastructure.

Cellular (Mobile) Internet

• Delivers internet access through cellular networks (3G, 4G, and 5G).
• Accessed via smartphones, tablets, or using a mobile hotspot device.
• 3G, 4G, and 5G speeds vary, with 5G offering the fastest speeds.

Hotspot Internet

• Provides internet access via Wi-Fi in a specific location.
• Many devices can act as hotspots, sharing their mobile data connection.
• Speeds depend on the mobile connection and carrier’s network.

Broadband over Power Lines (BPL)

• Delivers internet over electrical power lines.
• Still in limited use and not widely available.

Browser

• Software application used to access and display web pages on the internet.
• Allows users to browse websites by interpreting HTML and presenting content interactively.

URL (Uniform Resource Locator)

• The web address used to locate a resource (such as a website or document) on the internet.
• Key use: Provides a way to access specific content on the web.

IP Address (Internet Protocol Address)

• Unique numerical identifier assigned to every device connected to the internet.
• Used to locate and identify devices on a network.
• IPv4 (32-bit addresses) and IPv6 (128-bit addresses) are common types.

DNS (Domain Name System)

• Translates domain names (like www.google.com) into IP addresses (like 172.217.12.174).
• Makes navigating the web easier by using domain names instead of IP addresses.

Bandwidth

• The amount of data that can be transmitted over an internet connection in a given amount of time.
• Measured in bits per second (bps).
• Higher bandwidth means faster internet speeds and better performance for streaming, downloads, and web browsing.

Broadband

• A high-speed internet connection that provides faster data transmission compared to traditional dial-up.
• Includes technologies such as DSL, cable, fiber-optic, and satellite.

Wi-Fi (Wireless Fidelity)

• Wireless networking technology that uses radio waves to provide high-speed internet and network connections.
• Enables devices like laptops, smartphones, and tablets to connect to the internet without physical wires.

Modem

• Converts digital data from a computer into an analog signal (or vice versa) for transmission over phone lines or other media.
• Connects a device to the internet, crucial for DSL or cable connections.

Router

• Networking device that forwards data between computer networks.
• Directs traffic from your local network to the internet and vice versa.

Cloud Computing

• Delivery of computing services (servers, storage, databases, networking, software, etc.) over the internet ("the cloud").
• Allows users to store and access data and applications remotely rather than on a local computer.

Streaming

• Method for transmitting or receiving data (especially video and audio) over the internet in a continuous flow.
• Avoids downloading the entire file.
• Used for services like Netflix, YouTube, and Spotify to play media content without long download times.

Phishing

• Type of online scam where attackers impersonate legitimate organizations to steal personal information.
• Common form of cybercrime that targets unsuspecting users through emails or fake websites.

Botnet

• Network of compromised devices controlled remotely by a hacker.
• Used to carry out large-scale attacks, such as DDoS (Distributed Denial of Service) attacks.

IoT (Internet of Things)

• Network of physical devices (such as smart home appliances, wearables, and vehicles) connected to the internet.
• Enables automation and smarter decision-making in various sectors, including healthcare, transportation, and home automation.

Web Browser

• Software application that allows users to access, retrieve, and view content on the World Wide Web (WWW).
• Acts as an interface between users and the internet, enabling them to visit websites, search for information, and interact with online resources.
• Key functions: Accessing websites, rendering web pages, handling interactions with websites, managing browsing history and bookmarks, and maintaining security and privacy.

This quiz covers essential concepts related to internet usage, e-commerce, and connectivity methods. Explore various aspects of online learning, the significance of the internet in daily life, and how to connect using Wi-Fi and Ethernet. Perfect for anyone looking to enhance their understanding of digital environments.