Toggle Key

Why Trust Techopedia

What Does Toggle Key Mean?

A toggle key is a key that is used to turn a function on or off, or to switch between two functions. Examples of toggle keys are the caps lock key, number lock key and scroll lock key. A toggle key can also be used as an accessibility option to alternate the input mode of keys.

Advertisements

Techopedia Explains Toggle Key

A toggle key toggles the input from other keys on the keyboard between different input modes. The most commonly used toggle key is the caps lock key, which alternates the letter keys between uppercase and lowercase. Num lock is another toggle key which helps to input numerals from the numeric keyboard and is turned on by default. Another example of a toggle key is the scroll lock key, which allows arrow keys to scroll through window’s contents and allows users to scroll without depending on the scroll bar. The insert key is another example of a toggle key, and it toggles between overtype mode and insert mode while entering text.

A toggle key, unlike modifier keys, is turned on or off when pressed —they need not be held down while pressing other keys. Most keyboards have lights indicating whether the keys are switched on or off. Some operating systems and applications also display the toggle key status on the screen.

Advertisements

Related Terms

Margaret Rouse
Technology Specialist
Margaret Rouse
Technology Specialist

Margaret is an award-winning writer and educator known for her ability to explain complex technical topics to a non-technical business audience. Over the past twenty years, her IT definitions have been published by Que in an encyclopedia of technology terms and cited in articles in the New York Times, Time Magazine, USA Today, ZDNet, PC Magazine, and Discovery Magazine. She joined Techopedia in 2011. Margaret’s idea of ​​a fun day is to help IT and business professionals to learn to speak each other’s highly specialized languages.