Embedded System

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A computer system that is integrated into a bigger device or system to carry out a specific task is known as an embedded system. It is a hybrid of hardware and software created to carry out a specific task, frequently under the restrictions of real-time computing. From basic gadgets like a microwave oven to complicated systems like aeroplanes and medical equipment, embedded systems are included in a wide variety of products.


Embedded systems are often built to work in a particular context and have constrained resources, such as memory and computing power. They frequently employ real-time operating systems, specific programming languages, and specialised input/output and communication interfaces.


Embedded systems are used for the specific task. They are made from microcontrollers which is the brain of the system.

It is a Microcontroller - based system that is designed to control a task or range of tasks and is not meant to programmed by the end user.

A microcontroller has on chip RAM, on chip ROM, Timers, Serial and Parallel ports, with some other peripherals(PWM, ADC, DAC, Watch dog timers etc)

The user may make choices that he/she wants in that specific product but can not modify the functionality.

They are designed to perform specific types of task.

 

Timers



Counters



Common Features :

Low Cost, Low Energy Consumption, Small Size, Must respond to the inputs, Real Time,

in some application delay can be tolerated

Applications of embedded System :-

Consumer Segment - Refrigerator, Washing Machine, Camera, TV, security System

Office Automation : Printers, Fax Machines, Scanner, Biometric Scanner

Automobiles - Air Bags. Anti-Lock Brake System, Engine Control, Door Lock, GPS System door Lock System

Communication : Mobile Phones, Network Switches, Wifi HotSpots, Modem

Miscellaneous : Automatic D

The main application of embedded systems are-

Ex.- ATM, Microwave, Washing Machine etc.



Embedded system examples include:

Automobile systems, including engine management and navigation systems



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