A brief, sharp sound: the click of a door latch. 2. A mechanical device, such as a pawl, that snaps into position. 3. Computers. a. An instance of pressing down and releasing a button on a mouse or other input device.
4.3. Booting from the network is only required in certain cases. Booting from the network is very usefull when you have unsupported I/O devices, diskless systems, or systems with broken hardware. Network booting is detailed below.
To be simple, the term bootloader means, a script which is run before the operating system starts and this is the function which they perform in smartphones, PC or your laptop. In smartphones, bootloader gets executed before the launch of every application and makes the application work specifically for the processor.