An Embedded System is a device with either microcontroller or processor designed for a specific purpose, system or product design. Each microcontroller or processor-based design comes with individual unique advantages, address the different needs and requirements of the Embedded System Design. As a result of the specific purpose hardware and software designed for the differentiation of products, Embedded Products are prevalent and easily make up majority of product designs among various industries. (Automotive, Industrial, Medical, Aerospace/Defense)
Apart from the complete hardware design with I/O features and interfaces, Embedded Device needs an operating system that can respond fast and it prepared to keep working in any event. That is why we cannot rely on a general-use OS, but an Embedded Operating System.
An Embedded operating system is an OS designed and optimized to:
- a) Improve the efficiency of managing the hardware resources
- b) Reduce response time specifically for the task the device was created for
Some examples of Embedded Systems are industrial robots, smart devices, IoT machines, drones, medical system, video game consoles, all kinds of control system and boards for general devices, instrumentation systems and many others.
Embedded System design is the process where hardware and firmware designer come together to build Embedded System from scratch. This involves PCB design, where the necessary components are connected to build specific functional circuits, computational logic, memories, communication, I/O peripherals for a specific functional system design. A washing machine is an Embedded system, home recorder to complex system design in medical system, aerospace and defense control, smartphone, security access system, all kinds of intelligent appliances are part of Embedded Design System.