Th e most important external issue when using social media in emergency management is the disaster response. Disseminating information through social media is very effective especially when there are calamities and a disaster respond from both private and public sector is very urgent.
An embedded computer is designed to perform a certain function and it is a component of a larger system.
An embedded computer has a dedicated function within a larger system and is incorporated as a part of a complete system rather than being a stand alone computer.
It is a microprocessor, micro controller based real time control system.
Its a combination of hardware and software that have a dedicated function to achieve a specific task. The also have peripheral devices for communication purposes.
Digital Camera
, ATM, Calculator, Digital Watch
, Self-autonomous Vehicles, Security Camera
, Washing Machine
, Mp3 player, Microwave Oven
, Fire Alarm, Smart Phone,Vending Machines, networking hardware like dedicated routers etc are examples of embedded systems.
Embedded computers are less expensive to produce, consumes less power, easier to maintain, do not require remote maintenance and easily customizable.
Out door air pollution has been a problem since ancient Romans...but the industrial revouloution was when outdoor air pollution increased and it a significant problem... hope this helps
