2. Embedded System 4. Microprocessor, 6. RAM, 7.Flash
Memory
3. Embedded System Embedded System is a Computer System with
dedicated function that is present inside large electrical or
mechanical system. The common properties of embedded system are low
power consumption and low cost of hardware because it is limited to
perform single task. It is based on Microprocessor or
Microcontroller.
4. Varieties of Embedded System consumer, cooking, industrial,
automotive, medical, commercial , military applications.
5. Varieties of Embedded System consumer, cooking, industrial,
automotive, medical, commercial , military applications.
6. Characteristics Embedded System are designed to do some
specific task. Embedded system is not always stand alone device.
Program written for embedded system is called as firmware and
stored in ROM.
7. User Interface User Interface ranges from No Interface to
dedicated User Interface that looks like Stand alone System.
Standard Interfaces are buttons, Multi Color LED, Graphic Character
LCD with Menu.
8. Processors Microprocessor Processor with dedicated
connections for ROM, RAM and Flash Microcontroller Everything
included in the chip
9. Peripherals Embedded System talks with outside world through
peripherals RS 232 USB MultiMedia Cards Networks ADC/DAC
10. Tools to write program Developers use compilers, assembler,
debugger. In Circuit Debugger is used to check circuit.
11. Reliability Embedded systems reside in large machines so it
should be tested more carefully against errors. Reliability can be
assured using following techniques Watch Dog Sub System Limp Nodes
Hypervisor
