Embedded systems: What are they?
A special purpose computer built into a larger device
• ‘Special-purpose’
Embedded systems have a (more or less) well-defined purpose Contrast with: general purpose computers (PCs etc)
• ‘Built into a larger device’
Embedded systems are (usually) part of a larger device, augmenting its capabilities
WHY EMBEDDED SYSTEMS
It is EMBEDDED because the Micro Controller is ‘inside’ some other system.
For Example a Micro Controller is ‘EMBEDDED’ into your TV, car, or appliance
The consumer need not think about how to make it perform or process
§ Avoids lots of Electronics Components
§ Built in rich Features
§ Reduces the cost, space
§ Less Down Time for Maintenance
§ Probability of Failure is reduced
§ Easy interface with Computers
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