THIS IS AN IFSM 201 QUESTION An embedded system is any electronic system that us
ID: 3682588 • Letter: T
Question
THIS IS AN IFSM 201 QUESTION
An embedded system is any electronic system that uses a CPU chip but that is not a general-purpose workstation, desktop, or laptop computer. It is a specialized computer system that is part of a larger system or a machine. Embedded systems are used in many places, such as automobiles.
a) What functions would such an embedded system control?
b) What functions of a normal desktop or laptop operating system would NOT be found in such an embedded system?
Be sure to address both questions. And cite your sources. Please do NOT make Wikipedia your primary source. You may use it, but there should be other reputable sources included first.
Explanation / Answer
An embedded system is a computer controlled device designed to perform specific tasks. In most cases these tasks help resolve the real-time control of machines or processes.
A general purpose definition of embedded systems is that they are devices used to control, monitor or assist the operation of equipment, machinery or planet.
a)
Sol: Typical functions of embedded systems can be
Ability to process the analog/digital signals.
Ability to transfer signals (“Information”) from/to the outside world.
The ability to preserve the temporary information within the embedded system.
The use of embedded systems in electrical products can solve many problems of complexity and product size. For example, a modern automobile may contain dozens of embedded systems to control a wide range of processes within the car, ranging from brake balance control to air conditioning to the ignition system. Without embedded systems it would be impossible to computerize all of these features without the inclusion of a mass of complicated, fault prone electronics.
Link:
http://www.secab.org/siet/7thsem/embeddedsystems_www.revastudents.info.pdf
.B)
Sol: An embedded operating system is essentially a stripped down operating system with a limited number of features. It is typically designed for very specific functions for controlling an electronic device. For example, all cell phones use an operating system that boots up when the phone is turned on.
Embedded operating systems can either be custom written operating systems specific to the device or one of the myriad of general purpose operating systems that has been modified to run on top of the device. In the case of an embedded OS on a personal computer, this is an additional flash memory chip installed on a motherboard that is accessible on boot from the PC.
http://internetofthingsagenda.techtarget.com/definition/embedded-operating-system
http://embeddedcraft.org/embedlinuxdesktoplinux.html
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