An embedded system is a computer system that is specially designed to perform specific tasks within a larger system often with real time computing constraints.
It is embedded as a part of a complete device that inculdes hardware and mechanical parts to acheive the tast of embedded system. 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. eg: Washing Machines, Micro Waves etc.
It is embedded as a part of a complete device that inculdes hardware and mechanical parts to acheive the tast of embedded system. 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. eg: Washing Machines, Micro Waves etc.
Embedded systems contain processing cores that are typically either microcontrollers or digital signal processors (DSP). 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.
Physically, embedded systems range from portable devices
such as digital watches and MP3
players, to large stationary installations like traffic lights, factory controllers, or the systems
controlling nuclear power plants.
Complexity varies from low, with a single microcontroller
chip, to very high with multiple units, peripherals and networks mounted inside a large chassis or enclosure.
PCB (Printed Circuit Board) :
A printed circuit board commonly known as PCB plays an important role in embedded system(PCBs are also important in general computer systems). A PCB is the general circuitary of the system that involves overall functioning of the system.
A printed circuit board commonly known as PCB plays an important role in embedded system(PCBs are also important in general computer systems). A PCB is the general circuitary of the system that involves overall functioning of the system.
