Embedded systems were specifically designed to perform a dedicated function repeatedly, with 
real-time computing constraints. Embedded single-board computers are part of a larger device that includes hardware and mechanical parts. By contrast, the personal computer was designed to be multi-functional.
Today, the closest thing we have to an embedded system falls under the handheld computer category, that is, a personal information manager or PIM. Even these computers can't be considered truly embedded as they allow for multifunctional capabilities, just like personal computers. Embedded systems have many advantages including instant availability and almost zero time-to-market. Because their interfaces and functionalities are onboard, they have become ubiquitous accessories that comprise a fast system set-up. Eight billion embedded microprocessors are produced each year. This number is expected to rise dramatically over the next decade, making electronic devices ever more pervasive.
real-time computing constraints. Embedded single-board computers are part of a larger device that includes hardware and mechanical parts. By contrast, the personal computer was designed to be multi-functional. Today, the closest thing we have to an embedded system falls under the handheld computer category, that is, a personal information manager or PIM. Even these computers can't be considered truly embedded as they allow for multifunctional capabilities, just like personal computers. Embedded systems have many advantages including instant availability and almost zero time-to-market. Because their interfaces and functionalities are onboard, they have become ubiquitous accessories that comprise a fast system set-up. Eight billion embedded microprocessors are produced each year. This number is expected to rise dramatically over the next decade, making electronic devices ever more pervasive.
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