Tech+ Unit 3

Internet

A global network of computing devices communicating with each other using the Internet Protocol suite.

World Wide Web (WWW)

An information system where documents and other web resources are identified by URLs and accessible via the internet.

ISP (Internet Service Provider)

A company that provides individuals and organizations access to the internet (e.g.

IP Address

A unique string of numbers separated by periods (IPv4) or colons (IPv6) that identifies each computer using the Internet Protocol to communicate over a network.

IPv4

The fourth version of the Internet Protocol, which uses 32-bit addresses

IPv6

The latest version of the Internet Protocol, which uses 128-bit addresses to provide a much larger number of unique IP addresses.

URL (Uniform Resource Locator)

The address of a specific web page or file on the internet

Protocol

A set of rules that governs how data is transmitted and received over a network.

HTTP (Hypertext Transfer Protocol)

The foundation of data communication for the World Wide Web; it is used to transmit web pages.

HTTPS

The secure version of HTTP that uses encryption (SSL/TLS) to protect data transmitted between a browser and a web server.

DNS (Domain Name System)

The service that translates human-readable domain names (like google.com) into numerical IP addresses.

Bandwidth

The maximum rate of data transfer across a given path, usually measured in bits per second (bps).

Broadband

High-speed internet access that is always on and faster than traditional dial-up.

Fiber Optic

A high-speed data transmission technology that uses light signals traveling through glass or plastic threads.

Coaxial Cable

A type of copper cable used by cable TV companies to provide high-speed internet.

DSL (Digital Subscriber Line)

A technology that provides high-speed internet over traditional telephone lines.

Wi-Fi

A wireless networking technology that uses radio waves to provide high-speed internet and network connections.

Modem

A device that converts signals from an ISP into a digital format that a computer or router can understand.

Router

A networking device that forwards data packets between computer networks and directs traffic on the internet.