Android Stack - Android Architecture
The stack itself consist of group of software and utility that are stacked according to its
level of their role in the Android system. Lower level are more basic functions which
on the bottom of the stack, while higher
Mobile Operating System
It performs the same functions as
your computers OS but, in portable
A mobile operating system controls a
Smartphone, Tablet, PDA, or other portable device.
Modern OSs combine the features of a personal computer
Boot process begins when you press the power button.
Power Supply initiated. (it is an actual 4-5 inches piece of hardware)
It send a signal to the motherboard and processor (CPU) that the power
is ready and stable.
What is Operating System
Manager-in-chief. It is the boss!
The operating system is the chief piece of software and assumes overall
responsibility for all of the systems hardware and software.
A system call is how a program requests a service from an oper