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An embedded system is some combination of computer hardware and software, with either fixed or programmable capabilities, that is specifically designed for a particular kind of application device.
Industrial machines, automobiles, airplanes, trains, medical equipment, video cameras, phones, PDAs, home appliances, vending machines, and toys are among the many possible hosts of an embedded system.
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Embedded Systems were initially used for large, safety-critical and business-critical applications such as rocket & satellite control, energy production control, telephone switches, flight control; They now include a very large proportion of the advanced products
designed in the world, spanning transport (avionics, space, automotive, trains),
electrical and electronic appliances (cameras, toys, televisions, home appliances / domotics,
audio systems, and cellular phones), process control (energy production and
distribution, factory automation and optimization), telecommunications (satellites,
mobile phones and telecom networks), energy (production, distribution, optimized use), security (e-commerce, smart cards), and health (hospital equipment, mobile monitoring), etc.
Over 95% of all electronic chips produced today are for Embedded Systems.
The extensive and increasing use of embedded systems and their integration in
everyday products marks a significant evolution in information science and
technology. We expect that within a short timeframe embedded systems will be a part
of nearly all equipment designed or manufactured in Europe, the USA, and Asia.
There is now a strategic shift in emphasis for embedded systems designers: from
simply achieving feasibility, to achieving optimality. Optimal design of embedded
systems means targeting a given market segment at the lowest cost and delivery time
possible. Optimality implies seamless integration with the physical and electronic
environment while respecting real-world constraints such as hard deadlines, reliability,
availability, robustness, power consumption, and cost. In our view, optimality can only
be achieved through the emergence of embedded systems as a discipline in its own right.
Embedded systems are of strategic importance in modern economies. They are used
in mass-market products and services, where value is created by supplying either
functionality or quality. Europe currently has a strong position in sectors where
embedded technologies play a central role. It has a lead in civil avionics where fly-bywire
technology provides an overwhelming competitive advantage in the cost of
operating aircraft. Embedded systems also play a key role in the space sector, specifically for
launch vehicles and satellites. In the automotive industry, manufacturers
and their suppliers gain a technological advantage in engine control, active safety features and
emerging technologies such as brake-by-wire and drive-by-wire. Modern railway signalling
relies on embedded systems, and allows faster, safer, and heavier traffic.
Embedded applications will be extensively used to make energy distribution more
flexible, especially in view of the coming market liberalization. Embedded
technologies are strategic for the telecommunications sector.
Embedded Systems are generally constrained by limited resources:
- Processor speed
- Power consumption
- Memory
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- Real-time constraints
- Network bandwidth
- Human supervision
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Embedded Systems: a few products
- Anti-lock brakes
- Auto-focus cameras
- Automatic teller machines
- Automatic toll systems
- Automatic transmission
- Automotive systems
- Avionic systems
- Battery chargers
- Camcorders
- Cell phones
- Cell-phone base stations
- Cordless phones
- Cruise control
- Curbside check-in systems
- Deep-space probes
- Digital cameras
- Disk drives
- Dvd players
- Electronic card readers
- Electronic instruments
- Electronic toys/games
- Distribution of Energy
- Factory control/automation
- Fax machines
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- Printers
- Satellites
- Scanners
- Smart ovens/dishwashers
- Speech recognizers
- Speed radars
- Stereo systems
- Teleconferencing systems
- Televisions
- Temperature controllers
- Trains:
- Theft tracking systems
- TV set-top boxes
- UAVs
- VCR’s,
- Video game consoles
- Video phones
- Washers and dryers
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