Fundamentals of Embedded System and Digital Devices | Classification of Embedded System | Application

   EMBEDDED SYSTEM

Embedded system is very important topic of Electronics.

What is Embedded System ?

An Embedded System is an electronic system which is designed to perform one or a limited set of function, using hardware and software.

lets discuses more about Embedded system 

 

 

Application Domain of Embedded System

The application of Embedded systems can be seen every element of daily life. The following lists are :

      I.          Consumer Electronics: Cameras, TVs, DVD Player, microwave oven, Remote, washing machine etc.

    II.          Household application: Fire alarm systems, air conditioners etc.

 III.          Automobile controls: Anti-lock braking system, engine & transmission control, door & wiper control, etc.

 IV.          Handheld devices: Mobile phones, PDAs, MP3 players, digicams, etc.

   V.          Medical equipment : ECG & ECG units, scanner, testing & monitoring equipment.

 VI.          Banking : ATMs, currency counters, etc.

VII.          Computer peripherals: printer, scanner, webcams, etc.

VIII.          Networking : Routers, Switches, hubs, etc.

 IX.          Factories : Control, Automation, Instrumentation & alarm systems, etc.

   X.          Aviation : Airplane controls, guidance, and Instrumentation systems.

 XI.          Military : Control and monitoring of military equipment

XII.          Robotics : Used in factories, household and hobby-related activities.

XIII.          Toys

 

Merit for Embedded system:

i.                 Low- power dissipation

ii.               Small physical size

iii.             Small code size

iv.             High speed of response

 

Classification of Embedded System 

 

 

SSI - Small Scale integrated Circuit ( 1- 10 gates )

MSI – Medium Scale integrated Circuit ( > 10 <100 gates )

VLSI – Very Large Scale integrated Circuit ( 1000 gates )

 

ASIC – Application Specific Integrated Circuit

          Ex:

i.                 Graphics Card Support IC

ii.               Speech Processing IC

Semi Custom : Changed Partly

Full Custom :  Changed Fully

 

PLA – Programmable Logic Array

CPLD – Complex Programmable Logic Array

FPGA – Field Programmable Logic Gate Array

 

Advantages of Digital Devices / Embedded System :

i.                 We can use FPGA kit to create new IC.

ii.               High Speed.

iii.             Flexibility is Large.

 

Disadvantages of Digital Devices / Embedded System :

i.                 Very Costly.

ii.               Software is not User friendly

iii.             Voltaic memory

 

Read Also : Elementary Idea of  Robotics

 Thank You.

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