Child lock
A security measure that allows you to block the controls of the stove. It will be useful in families with small children: when the lock is on, a curious child will not be able to turn on the stove or change settings. To unlock, one needs to perform certain actions, which are easy for an adult and too complex for a child: for example, you need to press two specific buttons simultaneously.
Display
A display on the stove control panel. Usually, it is a very simple one-colour display : 3-4 digits plus a few additional characters (for example, a thermometer icon and a clock icon). However, even on such a display, almost all important information related to the stove operation can be displayed: heating temperature, clock, timer settings, and other relevant data. Thus, the display significantly simplifies the management of the stove and makes it more convenient.
For technical reasons, this function is mainly used in electric stoves; there are also gas models with displays, but they are extremely few.