protection
Safety feature to prevent accidental shifting.
A transmission shift lock prevents someone from shifting out of park unless the brake pedal is depressed.
Content placeholder. You can put content like text or image on different layer then lock that layer to prevent accidental changes or to hide layer and its content.
mga buang!
The best preventive is to lock up all potential poisons, keeping them away from children. This would prevent more accidental poisonings than anything else.
If you lock a layer, you are unable to change/edit anything within that layer. It's useful if you want to prevent accidental changes while editing other layers.
Grounded.
Samsung Galaxy Pocket similar to other touch phones can be unlocked through the touch feature. Unlocking requires two actions to prevent accidental usage. In this case, it is a double tap on the screen.
No but it helps prevent chemical changes like rusting.
Yes if you are using the new slim PS3 that included this feature in the changes. There are also controls on the HDTV that can prevent the feature from working and you must be sure that they are not turned off at the TV's settings Menu.
no
To prevent shocks, or accidental contact with the live wiring on the plug.