My Favorite Technology – SARANYA THANUKKODI

EMBEDDED SYSTEM

INTRODUCTION:

An embedded system is a computer system made by combination of hardware and  software, it is used to perform a specific task. As the name indicate the word   embedded means something that is attached to another thing this the meaning of embedded system

COMPONENTS:

It has application of software, hardware and real time operating system (RTOS) the RTOS define the way the system work so we can define the embedded system as microcontroller based, microprocessor based, software driven, real time control system.

BASIC STRUCTURE OF EMBEDDED SYSTEM :

1.Sensor it measure the physical quantity and converted into electrical signal which can be read by the observer .A  sensor store the measured quantity into the memory

2.A-D converter converts the analogy signal set by the signal into digital signal

3.Processor Process  the data to measure the output and store into the memory 

4.D-A converter convert the digital data fed by the  processor to analogy data 

5.Actuator compares the output given by the D-A converter to the actual output stored in it and stores the approved  output

CHARACTERISTICS OF EMBEDDED SYSTEM:

1.Single functioned

2.Tightly constrained

3.Reactive and real time

4.Microprocessor based

5.Memory

6.Connected

7.HW-SW system

PROCESSOR IN A SYSTEM:

1.Program flow control unit(CU)

2.Execution Unit (EU)

It is a   processor two essential unit 

COMPLIER:

A complier is a computer program that transfer the source code written in a programming languages into he another computer language

These all the important process takes place in the embedded system.