Embedded system

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Embedded system

  1. 1. Presented By: Ganesh V. Vadulekar
  2. 2. Introduction History Definition Characteristics Features Examples Why Embedded system? Market for Embedded software, Embedded IC, Embedded boards Embedded OS Sourcing Trend Embedded system vs. General Computer Advantages Summary
  3. 3. An embedded system is a computer system designed for specific control functions within a larger system, often with real-time computing constraints. Embedded systems contain processing cores that are typically either microcontrollers or digital signal processors (DSP).
  4. 4. One of the first recognizably modern embedded systems was the Apollo Guidance Computer, developed by Charles Stark Draper at the MIT Instrumentation Laboratory. The first microprocessor for example, the Intel 4004, was designed for calculators
  5. 5. Embedded system: is a system whose principal function is not computational, but which is controlled by a computer embedded within it. The embedded system is a combination of hardware and software to perform a particular task.
  6. 6. Special-purpose  Typically, is designed to execute a single program, repeatedly  Tactic and Strategy Tightly constrained  Fewer components based  Low cost  Simple systems
  7. 7. Reactive and real-time  Reactive: Continually reacts to external events  Real-time: Must compute certain results in real-time Hardware and software co-exist  The software written for embedded systems is often called firmware
  8. 8. Small size & less weight. More efficiency. Embedded systems are programmed to perform specific task only. Embedded systems are playing important roles in our lives every day.
  9. 9. MP3 music players Data switches Automotive controls Air conditioner ATM machine Battery charger Digital camera DVD player Video game console Fax machine Home security system Mobile phone Modem Photocopier Printer Router Scanner TV
  10. 10. REFRIGIRATOR
  11. 11. CAR DOOR
  12. 12. Performance:  Technology Advances CMOS VLSI dominates older technologies (TTL, ECL)  Computer architecture improvements RISC, superscalar, RAID, Price:  Simpler development CMOS VLSI: smaller systems, fewer components  Higher volumes CMOS VLSI: same device cost 10,000 vs. 10,000,000 units
  13. 13. Performs one or a few pre-defined tasks Very specific requirements Task-specific hardware and mechanical parts Often mass-produced Design engineers can optimize it
  14. 14. High reliable. Can be interface as user convenient. Embedded systems are constrained for power consumption since many embedded systems work on a battery at low power.
  15. 15. A quiet revolution is in progress in the utility industry. Static metering devices, have been in use for the better part of a century Gradually being replaced with multirate, multifunction meters Capable of more accurately accounting for utility usage.
  16. 16. THANK YOU

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