Congratulations. You've discovered Caps Lock.
It is the key marked with: Caps Lock
Either of the two shift keys on the keyboard.
A keyboard only has one of each letter. By pressing the "shift" key, however, you can change the small C to a capital.
Hold down the shift key while typing.
Why the window key in keyboard?
Once you click the caps lock key in the keyboard of your computer, it can make one or more letters capital.
The shift key is a modifier key on a keyboard, used to type capital letters and other alternate upper characters. There are typically two shift keys, on the left and right sides of the row below the home row.
The lowest key on a standard piano keyboard is the A0 key, which is the first key on the left side of the keyboard.
keyboard
The Shift key is used to make a few capital letters, but the Caps Lock makes all letters capital until you hit it again!
To type a capital "U" on a standard keypad, you would typically hold down the "Shift" key and then press the "U" key simultaneously. Alternatively, if you're using a device without a physical keyboard, you can enable Caps Lock and then press the "U" key. This will produce a capital "U" without needing to hold the Shift key.
Capital Lights was created in 2002.