The aim of this handbook is to summarize the recent rapidly developed real-time computing technologies, from theories to applications. This handbook will benefit the readers as a full and quick technical reference with a high-level historic review of technology, detailed technical descriptions and the latest practical applications. In general, the handbook with be divided into three main parts (subjected to be modified): theory, design, and application covering different but not limited to the following topics:- Real-time operating systems- Real-time scheduling- Timing analysis- Programming languages and run-time systems- Middleware systems - Design and analysis tools- Real-time aspects of wireless sensor networks- Energy aware real-time methods