The modern lock screen is an evolution of the old login screen and serves a similar purpose: it prevents anyone from using your device unless they know the password or passcode.
What does the lock screen look like in different operating systems?
The lock screen has been around almost as long as the computer. But in this day and age, where mobile devices have become so intertwined with our daily lives, the ability to lock our devices is more important than ever.
But a device doesn’t need a password to make a lock screen useful. A very important aspect of a lock screen on our smartphones is to prevent us from accidentally sending commands while it’s still in our pocket. While the lock screen hasn’t completely eliminated accidental dialing, the process of unlocking the phone with a specific gesture has certainly made it much rarer.
Lock screens can also give us quick access to information without having to unlock our devices. The iPhone and Android-based smartphones like the Samsung Galaxy series and the Google Pixel can show us the time, events in our calendar, recent text messages, and other notifications without us ever having to unlock the device.