Abstract:
The purpose of this paper gives brief about the embedded system and expounds the main contents of embedded systems are real time operation system, application of embedded system, co design and design challenges etc. Embedded system is a part of large system. It is just try to know about the design of embedded system, real time operation system and also familiar with co design of hardware and software.

Keywords: Embedded system, Co-design, Design Challenges, The need and priorities in Research