Provides info about running processes and resource usage. Helps identify unresponsive programs.

Removes the selected data and copies it to the clipboard.

A Graphical User Interface, which is how most modern OSes and apps present themselves.

A Command Line Interface for controlling a computer by typing text commands. Still has its uses!

That little area, usually bottom-right on Windows, that holds status icons and background apps.

A collection of tools and settings for configuring your Windows system.

A text-based interface for running commands. Called Command Prompt on Windows, and Terminal on Mac.

Software that detects and removes malware like viruses, spyware, and ransomware.

Monitors incoming and outgoing network traffic to protect your system and data.

Software that lets your OS communicate with a particular piece of hardware.