If
we look around, we will find ourselves to be surrounded by computing
systems. Every year millions of computing systems are built destined for
desktop computers
(Personal Computers, workstations, mainframes and servers) but
surprisingly, billions of computing systems are built every year
embedded within larger electronic devices and still goes unnoticed. Any
device running on electric power either already has computing system or
will soon have computing system embedded in it.
Today, embedded systems
are found in cell phones, digital cameras, camcorders, portable video
games, calculators, and personal digital assistants, microwave ovens,
answering machines, home security systems, washing machines, lighting
systems, fax machines, copiers, printers,
and scanners, cash registers, alarm systems, automated teller machines,
transmission control, cruise control, fuel injection, anti-lock brakes,
active suspension and many other devices/ gadgets.
What is Embedded System?
A precise definition of embedded systems is not easy. Simply stated, all computing systems other than general purpose computer (with monitor, keyboard, etc.) are embedded systems.
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