26-05-2014, 11:09 AM
Paper on Embedded Systems
HISTORY
First embedded system was the APOLLO GUIDANCE COMPUTER.
In 1961 Autonetics D-17 guidance computer used in missile.
Microprocessor INTEL 4004 was designed .
EMBEDDED SYSTEM
A system that has an embedded software in a device that make a system dedicated for an application or for a specific part of an application or product ,or a part of a larger system.
What is an Embedded System?
An Embedded System is microprocessor or microcontroller based system that is embedded as a subsystem, in a larger system (which may or may not be a computer system).
Physically, embedded systems range from portable devices such as digital watches and MP3 players, to large stationary installations like traffic lights, factory controllers, or the systems controlling nuclear power plants
MICROPROCESSOR
A microprocessor is used as general-purpose processor when large embedded software has to be located in the external memory chips.
In general , a microprocessor is a single VLSI chip that
has a CPU.
CPU executes information stores in the memory.
General Characteristics of Embedded Systems
Perform a single as well as multitasking.
Increasingly high performance and real time constrained.
Power, cost and reliability are important considerations.
HW-SW systems
Software is used for more features and flexibility
Hardware (processors, memory etc. are used for performance and security.
Sophisticated embedded systems
Number of 32-bit or 64-bit microcontroller.
Increase in the Number of hardware and software.
Use of C++/VISUAL C++/JAVA.
Use of software function such as encryption.
Example:-Mobile phone , Smart card
Views on embedded System
It is estimated that each year embedded software is written five times as much as 'regular' software
The vast majority of CPU-chips produced world-wide today are used in the embedded market ... ; only a small portion of CPU's is applied in PC's
... the number of software-constructors of Embedded Systems will rise from 2 million in 1994 to 10 million in 2010;
... the number of constructors employed by software-producers 'merely' rises from 0.6 million to 1.1 million.
HISTORY
First embedded system was the APOLLO GUIDANCE COMPUTER.
In 1961 Autonetics D-17 guidance computer used in missile.
Microprocessor INTEL 4004 was designed .
EMBEDDED SYSTEM
A system that has an embedded software in a device that make a system dedicated for an application or for a specific part of an application or product ,or a part of a larger system.
What is an Embedded System?
An Embedded System is microprocessor or microcontroller based system that is embedded as a subsystem, in a larger system (which may or may not be a computer system).
Physically, embedded systems range from portable devices such as digital watches and MP3 players, to large stationary installations like traffic lights, factory controllers, or the systems controlling nuclear power plants
MICROPROCESSOR
A microprocessor is used as general-purpose processor when large embedded software has to be located in the external memory chips.
In general , a microprocessor is a single VLSI chip that
has a CPU.
CPU executes information stores in the memory.
General Characteristics of Embedded Systems
Perform a single as well as multitasking.
Increasingly high performance and real time constrained.
Power, cost and reliability are important considerations.
HW-SW systems
Software is used for more features and flexibility
Hardware (processors, memory etc. are used for performance and security.
Sophisticated embedded systems
Number of 32-bit or 64-bit microcontroller.
Increase in the Number of hardware and software.
Use of C++/VISUAL C++/JAVA.
Use of software function such as encryption.
Example:-Mobile phone , Smart card
Views on embedded System
It is estimated that each year embedded software is written five times as much as 'regular' software
The vast majority of CPU-chips produced world-wide today are used in the embedded market ... ; only a small portion of CPU's is applied in PC's
... the number of software-constructors of Embedded Systems will rise from 2 million in 1994 to 10 million in 2010;
... the number of constructors employed by software-producers 'merely' rises from 0.6 million to 1.1 million.