Applications (also called "apps" or "programs") are tools that let you do different tasks on your computer -- like writing documents, browsing the internet, or watching videos.
1. Using the Start Menu (Windows)
2. Using the Dock (macOS)
3. Using Desktop Shortcuts
4. Searching
1. Windows
2. macOS
Minimize: Shrinks the app to the taskbar (Windows) or Dock (macOS) without closing it.
Maximize/Restore: Makes the window full screen or returns it to normal size.