This small things, like washing machines, microwaves, mobiles, cars, refrigerators, thermostats, Direct to Home satellite TV, etc all have embedded systems and are changing our lives a lot.
Basically Embedded system in an electronic device which is microprocessor-based and has a dedicated operating system to run. This Operating system of embedded systems is designed in such a way that it performs very specific tasks in given a time-frame.
A classic example to explain embedded systems is a mobile phone. Mobile has functions like calling, receiving, screen brightness, data connectivity, ringtones, camera , music player etc . Each of this function has dedicated small microchip or embedded processor and controls a very specific function like data connectivity or ringtones settings etc. This happens all simultaneously, hence it is called working in “Real Time”. Embedded system is an intelligent system but well it is not a computer.
Major Parts of Embedded systems.
- Embedded Hardware. The caricature of the device or Microprocessors.
- Embedded Software : The Software to run processes of each of the functions. usually written in ROM(Read only Memory)
- RTOS(Real Time Operating System): Upper layer of software which helps in execution of processes and gives command which process should work in which way.
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