Answer:

To type capital letters on a keyboard, you need to turn on the Caps Lock key. The Caps Lock key is a toggle key that allows you to type in uppercase letters without having to hold down the Shift key. When the Caps Lock key is turned on, all letters you type will be capitalized until you turn it off again.

Explanation:

When you press the Caps Lock key on the keyboard, it activates the Caps Lock mode. In this mode, all the letters you type will be capitalized, regardless of whether you press the Shift key or not. This is useful when you want to type an entire sentence or paragraph in uppercase letters.

The Caps Lock key is usually located on the left side of the keyboard, either above or below the Shift key. It is often labeled with an arrow pointing upward, indicating the capitalization of letters. Pressing the Caps Lock key once will turn it on, and pressing it again will turn it off.

Advantages of using Caps Lock:
- Convenience: The Caps Lock key allows you to easily type in capital letters without having to hold down the Shift key continuously. This can be particularly useful when typing long passages or when you need to switch between lowercase and uppercase frequently.
- Consistency: By using the Caps Lock key, you can ensure that all your uppercase letters are consistent in appearance. This can be important for aesthetic reasons or when following specific formatting guidelines.
- Accessibility: Some people may find it difficult to hold down the Shift key while typing. The Caps Lock key provides an alternative method for typing in uppercase, making it more accessible for those with physical limitations.

Conclusion:

The Caps Lock key is the key on the keyboard that needs to be turned on to type capital letters. It is a convenient and efficient way to type in uppercase without having to hold down the Shift key continuously. By understanding how the Caps Lock key works, you can easily switch between lowercase and uppercase letters while typing.