An embedded system is a mix of hardware, software, and firmware that has been customised for a particular application. It is a tiny computer that may be incorporated in mechanical or electrical systems, such as autos, industrial equipment, medical devices, smart speakers, or digital watches. Examples of these kinds of systems include Programmability or functionality lockdown may be characteristics of an embedded system.  In most cases, it consists of a CPU, memory, power supply, and communication ports, and it also contains the software that is required to carry out activities. In addition, certain embedded devices may run a lightweight operating system, such as a Linux distribution with less features.  When data must be sent from the processor of an embedded system to a peripheral device—which may be a gateway, a central data processing platform, or even another embedded system—the embedded system makes use of communication ports. It is possible that the processor is a microprocessor, but it might also be a microcontroller, which is like a microprocessor but also has integrated memory and peripheral ports.   The processor makes use of specialised software that is stored in memory to understand the data that it has acquired. IoT devices may have embedded systems that vastly differ from one another in terms of complexity and function; nonetheless, they all have the ability to process and send data.