Embedded Systems | Computer for GCSE/IGCSE - Year 11 PDF Download

Embedded Systems

• An embedded system is a computer system designed with either a singular function or limited, specific functions, integrated into a larger mechanical device.
• Its primary role is to govern the device's operations and facilitate user interaction.
• Operating on firmware, it lacks additional peripherals.
• Unlike general-purpose computer systems such as laptops or desktops, which can perform various tasks, embedded systems serve a singular or specialized purpose.
• The predominant share of manufactured microprocessors caters to embedded system applications.
• Certain embedded systems operate as microcontrollers, constituting part of an integrated circuit equipped with built-in memory.

• Microprocessors employed in embedded systems are frequently custom-designed.
• Embedded systems commonly feature firmware, a form of software integrated into the system that users cannot reprogram. However, some software components may be updated, such as GPS software in a car navigation system.
• Typically, embedded systems incorporate some form of analog or digital input.

• Embedded systems offer numerous advantages:
  • They exhibit low power consumption.
  • They possess compact physical dimensions.
  • They entail low manufacturing costs.
  • They can be remotely controlled.
  • They are capable of operating in real-time and swiftly responding to inputs.