Summary: Embedded system is a special computer system that is "fully Embedded within a controlled device and designed for specific applications". According to the definition of U.K. Institution of Electrical Engineer, Embedded system is a control, monitoring or auxiliary equipment, machine or equipment used for factory operation. Unlike general-purpose computer systems such as personal computers, embedded systems typically perform pre-defined tasks with specific requirements. Because an embedded system is only for a particular task, designers can optimize it to reduce size and cost.Embedded systems are typically mass-produced, so a single cost savings can be made hundreds or thousands of times larger with the output An embedded system is a system used to control or monitor large - scale equipment such as machines, devices, factories, etc. The commonly accepted definition of embedded system in China is that it is a special computer system which is centered on application and based on computer technology. The software and hardware can be tailored to meet the strict requirements of application system on function, reliability, cost, volume and power consumption. Generally, an embedded system is an embedded processor control board that controls the program stored in the ROM. In fact, all devices with digital interfaces, such as watches, microwave ovens, VCRS, cars, etc., use embedded systems. Some embedded systems contain operating systems, but most embedded systems implement the entire control logic from a single program. The core of an embedded system consists of one or more microprocessors or microprocessors that are pre-programmed to perform a few tasks. Unlike general-purpose computers, which can run software of the user's choice, embedded software is usually temporary. So it's often referred to as "firmware."

Link to Websites: 1. https://baike.baidu.com/link?url=h0xqLT_rUy84s80pes_VrznP-of6Rrdp0NFwcDgovfufbgvd7B3JkBi0nAB5hbV_ks6Zp1HcvlCPBgVIk48TwtUgE4aMc7BDcM0XnK22Pgk1OKOB0QCsjofJJbVNbkLuvvi6wTxDErnTWOIyYfBnMa 2. https://en.wikipedia.org/wiki/Embedded_system 3. https://internetofthingsagenda.techtarget.com/definition/embedded-system

Questions: 1. What are the most common embedded systems? 2. What are some exciting developments and researches about embedded systems? 3. Can you elaborate on the future of embedded systems?