Embedded C is a programming language used to write software for small dedicated systems, such as microcontrollers, that are used in various applications like consumer electronics, industrial automation, automotive systems, medical devices, etc. It is a variant of the standard C programming language and adds additional features to deal with the limited resources and real-time requirements of embedded systems. Some of the common tasks that embedded C developers perform are designing device drivers, implementing communication protocols, developing user interfaces, and optimizing code for performance and memory usage. It is an essential skill for professionals working in the embedded systems industry.

Embedded Firmware refers to the specialized software programmed into hardware devices to control their functions and operations. This skill involves understanding the architecture of embedded systems, including microcontrollers and sensors, to develop and implement code that enables devices to perform specific tasks. Knowledge of Embedded Firmware is used to ensure reliable performance in applications such as consumer electronics, automotive systems, and industrial automation by managing hardware resources and facilitating communication between components.

Embedded software is a type of software that is designed to perform a specific function within a larger system, typically a device or machine. It is written to run on microcontrollers or microprocessors, and is often highly optimized for low power consumption and efficient use of resources. Engineers who specialize in embedded software development need to have a strong understanding of hardware architecture and programming languages such as C and assembly language. Embedded software is used in a wide range of applications including consumer electronics, aerospace and defense, and medical devices.

Joint Test Action (IEEE Standards) refers to a set of standards developed to facilitate testing and debugging of electronic systems through a standardized interface. This skill encompasses the implementation of boundary scan techniques, which enable access to the internal circuitry of integrated circuits for testing purposes. Knowledge of Joint Test Action (IEEE Standards) is used to improve fault detection, reduce testing time, and enhance the reliability of electronic devices by allowing for efficient verification of interconnections and functionality.

Real-Time Operating Systems (RTOS) is a type of software used for embedded systems that require fast and predictable response times. RTOS is designed to manage the timing of events and tasks, ensuring that they are executed at precise intervals. RTOS requires specialized knowledge to develop and implement, as it requires thorough understanding of the hardware and software limitations of the embedded system. This skill is essential in industries such as aerospace, defense, automotive, and medical devices.