Growing demands on functionality in today's electronic products are leading to an increasing shift towards developing systems in software and programmable hardware in order to increase design flexibility. As a result, an ever increasing part of the development costs of complex systems are devoted to software. This is true even of companies like Philips, traditionally seen as a hardware manufacturer, but many of whose products embody some of the most advanced embedded systems in
An embedded system is a computer system designed for specific control functions within a larger system, often with real-time computing constraints.It is embedded as part of a complete device often including hardware and mechanical parts. By contrast, a general-purpose computer, such as a personal computer (PC), is designed to be flexible and to meet a wide range of end-user needs. Embedded systems control many devices in common use today.
Embedded systems contain processing cores that are either microcontrollers or digital signal processors (DSP). A processor is an important unit in the embedded system hardware. It is the heart of the embedded system. The key characteristic, however, is being dedicated to handle a particular task. Since the embedded system is dedicated to specific tasks, design engineers can optimize it to reduce the size and cost of the product and increase the reliability and performance. Some embedded systems are mass-produced, benefiting from economies of scale..