Embedded System

Embedded refers to something that is tied to something else, as the name implies. A computer hardware system with software embedded in it is known as an embedded system. An embedded system can function as a stand-alone unit or as a component of a larger system.

A microcontroller or microprocessor-based embedded system is a system that is designed to execute a certain task. A fire alarm, for instance, is an embedded device that can only detect smoke.

There are three parts to an embedded system: hardware, software, and peripherals. It includes software for applications.

It has a Real Time Operating System (RTOS) that supervises application software and provides a mechanism for allowing the processor to conduct a process according to schedule by following a plan to control latencies. The system's behaviour is defined by the RTOS. It establishes the rules for the program's execution. RTOS may not be present in a small embedded system.

An embedded system might thus be defined as a Microcontroller-based, software-driven, dependable, real-time control system.