Networking and Connecting to the Internet
Internet: A vast computer network of interconnected networks using the TCP/IP protocol suite.
Packet Switching: A method for transferring information by breaking data into packets that are independently routed.
Circuit Switching: A method where a dedicated physical path is established for communication.
ARPANet: A research network developed by ARPA to connect multiple computer networks.
ISP (Internet Service Provider): A company that provides Internet access for a fee.
Net Neutrality: The principle that ISPs should treat all data equally without throttling or blocking content.
Transmission Media: The wired or wireless means of carrying an Internet signal.
Bandwidth: The volume of data that can be carried in a specific amount of time, usually measured in Mbps.
Broadband: High-speed Internet access, typically 25 Mbps download and 3 Mbps upload.
Fiber-Optic Cable: A high-speed transmission medium using light waves.
Coaxial Cable: A transmission medium using a single copper wire with shielding.
Twisted Pair: A transmission medium with two or four copper wires twisted to cancel interference.
Ethernet Cable: A wired networking cable used to connect computers.
Wi-Fi: A wireless Internet technology using radio waves.
IP Address: A unique identifier assigned to a network device.
Firewall: A security system that separates networks and protects against threats.
SSID (Service Set Identifier): The name of a Wi-Fi network.
WEP (Wired Equivalent Privacy): An outdated Wi-Fi security protocol.
WPA (Wi-Fi Protected Access): A more secure Wi-Fi encryption standard.
WPA2: The current Wi-Fi security encryption standard.
Social Media and Your Digital Identity
Digital Identity: The online presence of an individual or organization.
Internet Privacy: The right to control personal data online.
Copyright: Legal protection for original works of authorship.
Intellectual Property: Legally protected human knowledge and ideas.
E-Commerce: The buying and selling of goods and services online.
RFID (Radio Frequency Identification): Technology that uses radio waves to identify objects.
Software Piracy: The illegal copying or distribution of software.
BitTorrent: A peer-to-peer file-sharing protocol.
Social Media: Internet-based applications that allow interaction and sharing.
Facebook: The largest social networking site.
Twitter: A microblogging platform using short messages called tweets.
Instagram: A photo and video sharing social media platform.
Computer Hardware
Computer: A digital device that accepts input, processes data, stores data, and provides output.
Hardware: The physical components of a computer.
CPU (Central Processing Unit): The main processor of a computer.
RAM (Random Access Memory): Temporary memory used for processing data.
ROM (Read-Only Memory): Permanent memory storing essential system instructions.
SSD (Solid-State Drive): A storage device using flash memory for fast access.
Hard Drive: A storage device using magnetic disks.
Ports: Physical connections for input/output devices.
USB (Universal Serial Bus): A standard port for connecting peripherals.
HDMI (High-Definition Multimedia Interface): A port for transmitting high-definition video and audio.
Ethernet: A wired network connection standard.
Laptop: A portable computer with an integrated keyboard and screen.
Tablet: A mobile computing device with a touchscreen.
Smartphone: A handheld device with computing and communication capabilities.
Server: A computer that provides services to other devices on a network.
Computer Software and Buying a Computer
Operating System (OS): Software that manages hardware and software resources.
Utility Software: Programs that maintain and optimize a computer.
Windows OS: The most widely used OS for personal computers.
macOS: Apple's operating system for Mac computers.
Linux OS: A free, open-source operating system.
Application Software: Programs designed for specific tasks, such as word processing.
Spreadsheet Software: Software used for organizing and analyzing data in tabular form.
Database Software: Programs that manage structured data.
Cloud Computing: Internet-based computing services.
Software License: A legal agreement governing software use.
EULA (End-User License Agreement): A contract between the software user and the provider.
Site License: A software license allowing use on multiple devices within an organization.
App Store: A marketplace for downloading applications.
System Preferences (macOS): A tool for managing macOS settings.
Control Panel (Windows): A tool for managing Windows settings.