What is an embedded system?
For practical purpose, an embedded system is defined here as one dedicated to specific purpose and consisting of a compact, fast, and extremely reliable operating system that control the microprocessor located inside a device.
嵌入式系统就是有特定目的的,而且有着小,快,可靠的操作系统。
As noted above, an embedded system typically must operate within specified time on constraints. When such constraints exist,we call the embedded system a real-time system.