* Shift: This key is probably the most well-known modifier. It capitalizes letters, changes symbols on the number row, and can be used to perform other special actions depending on the context.
* Ctrl (Control): Used for various shortcuts, such as copying and pasting text, opening new windows, and navigating between documents.
* Alt (Alternate): Often used in combination with other keys to perform specific actions, such as switching between different applications or creating keyboard shortcuts.
* Command (Mac): Similar to Ctrl on Windows computers, but often used for actions like opening or closing applications and saving documents.
* Fn (Function): Found on many laptops, this key can be used to activate additional functions for keys like F1-F12.
* Windows Key (Windows): Opens the Start menu or activates various other system features.
* Option (Mac): Similar to Alt on Windows, this key can be combined with other keys to perform actions like accessing special characters or performing specific commands.
* Meta Key (Linux): Often used to access specific system commands and shortcuts.
Examples of how modifier keys change meaning:
* Shift + A: Capitalizes the letter "A".
* Ctrl + C: Copies selected text.
* Alt + Tab: Switches between open applications.
* Command + S: Saves the current document.
* Fn + F1: Might increase the screen brightness on a laptop.
There are other modifier keys out there, but these are the most common and widely used. It's important to note that the specific actions of modifier keys can vary depending on the operating system, software, and even the specific keyboard being used.