This document discusses embedded systems and provides an overview of key topics in the field. It defines embedded systems as special purpose computers used inside devices that combine both hardware and software components. The document outlines characteristics of embedded systems like performing computations in real-time with low cost, power usage, and size. It also describes common components, challenges, development tools, applications, and future trends of embedded systems.

1. Web Engineering
Respected to:
Subhenur Latif
Senior Lecturer, CSE
Daffodil International University

2. Welcome to our
Presentation

3. Topic

4. Group Members:
•Md.jobayar Siddique (131-15-2436)
•Shah md. Sultanul arafin(131-15-2216)
•Md.Delwar Hossain (131-15-2352)
•Fahamida yasmin(131-15-2568)
•Mousumi Akter (131-15-2189)

5. Contents
• Introduction
• Characteristics
• Components
• Application
• Real Time Operating System
• Challenges
• Embedded Software Development Tools
• Application
• Future Trends
• Conclusion

6. Introduction(Cont.)
WHAT ARE EMBEDDED SYSTEMS ?
An embedded system is a special purpose computer that is used inside of a
device.
A Combination of hardware and software that forms the components of a
larger systems.

7. The term ‘embedded systems’ is quite a complex one. These smart systems can
take decisions in different conditions.
In embedded systems, the hardware is normally unique to a given application.
Computer chips are embedded into the control electronics to manage the product
functionality.
Introduction

8. Characteristics
• *They compute results in real time ,without any delay.
• *They are low cost
• *They use little power
• *They are small in size

9. COMPONENTS
1.Embedded hardware :-It mainly consists of a microcontroller with various
peripheral IC’s.
2.Embedded RTO’S :-All intelligent devices that perform complex functions
have an embedded operating system inside.
3.Device drivers :-The software that acts as a glue between the operating
system and the peripheral device is called the device driver
(contd.)

10. 4. Communication stacks :-If the embedded device is capable of communicating to
the external world,it has a communication software stack running on the top of
operating system.
5. Embedded application :-It performs the predefined function of the embedded
device.
COMPONENTS

11. Application

12. RealTime Operating System
• The concept of real time operating systems is inseparable from when we talk
about embedded systems. A real time operating system is built for specific
applications and guarantees response to an external event within a specified time
constraint. For example, when you suddenly apply brakes to your car to avoid an
accident, the intelligent gadget responds immediately.

13. CHALLENGES
Precise engineering and design.
Low in cost.
High performance.
Careful selection of chips.
Efficiency.
In short, the challenge is to provide affordable, highly integrated
devices meeting stringent requirements for safety, security,
reliability, availability and at the same time keeping the cost low.

14. Embedded Software DevelopmentTools
• Host and target machines: The system that you ship may or may not have a
keyboard, a screen, a disk drive and the other peripherals necessary for programming.
It may not have enough memory to run a programming editor.
• Therefore most programming work for embedded systems is done on host- a
computer system on which all the programming tools run.
• Some people use the word ‘work-station’ instead of ‘host’..

15. • Cross-compilers:
• Cross-assemblers and tool chains:
• Linker/Locator for Embedded Software:
• Address resolution
• Locating program components properly:
• Locator places segments in memory:
• Execution out of RAM:
Embedded Software DevelopmentTools

16. Application
• Automatic teller machines (ATM):
• Cellular telephones and telephones switches:
• Household appliances:
• Inertial guidance systems in aircraft and missiles:
• Multifunction wristwatches:
• Medical equipment:
• Factory automation:
• Personal digital assistants:
• Programmable logic controllers:
• Audio/visual equipment:
• Personal computer peripheral office equipment:
• Communication equipment:

17. FutureTrends
Adaptive cruise control
Telemedicine
Security
Tele-matics
Bluetooth applications

18. CONCLUSION
The world of embedded systems is a dreamer’s paradise with
unlimited possibilities.
It make controlling all the systems around just by a simple gesture
and the things respond to you as if it was some magic.
As microprocessors are becoming smaller and cheaper, more and
more products are becoming ‘smart’ with microprocessors embedded
in them.

19. Thank You
Questions?