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Course Learning Outcome
Define an embedded system.
An embedded system is a system that has software embedded into computer hardware, dedicated for a specific application.
Microprocessors are typically used for basic control purposes.
False
Which characteristic is NOT typical of embedded systems?
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Name one application area of embedded systems.
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An embedded system typically contains a __________ designed to perform a limited set of functions.
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Which of the following statements is true about microcontrollers?
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Match the following embedded system examples with their functions:
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Study Notes
Embedded Systems Definition
- An embedded system is a system with software embedded into computer hardware.
- The software allows the system to be dedicated to a specific application or a specific part of a larger system.
- Embedded systems typically have a dedicated purpose and the software is usually embedded into a ROM or flash memory.
- An embedded system consists of a programmable computer that is not intended for general-purpose computing.
- An embedded system is an electronic system that contains a microprocessor or microcontroller, designed to perform one or a limited set of functions.
CPUs vs. MCUs vs. Embedded Systems
- Microprocessors (CPU) are typically defined as a single processor core that supports instruction fetching, decoding, and executing.
- Microprocessors can be used for general-purpose computing, but they need supporting memories and input/output (I/O) devices.
- Microcontrollers (MCU) typically have a single processor core, memory blocks, digital I/Os, analog I/Os, and other basic peripherals.
- Microcontrollers are typically used for basic control purposes, such as in embedded applications.
- Embedded systems are typically implemented using MCUs and often integrated into a larger mechanical or electrical system.
- Embedded systems typically have real-time constraints.
General Characteristics of Embedded Systems
- Embedded Systems are generally designed to perform one or a small set of functions.
- They are designed to dissipate low power.
- They have limited memory and limited peripherals.
- Applications are not meant to be altered by the user.
- They are highly reliable.
- Many embedded systems are not directly accessible, as they may be part of a larger system's control unit, so there is no interference with operation.
List of Embedded Systems
- Anti-lock brakes
- Auto-focus cameras
- Automatic teller machines
- Automatic toll systems
- Automatic transmission
- Battery chargers
- Camcorders
- Cell phones
- Cell-phone base stations
- Cordless phones
- Curbside check-in systems
- Digital cameras
- Disk drives
- Electronic card readers
- Fingerprint identifiers
- Home security systems
- Life-support systems
- Modems
- Network cards
- Network routers
- Remote controls
- Smartwatches
- MP3 players
- Traffic lights
- Washing machines
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Description
This quiz explores the definition and characteristics of embedded systems, comparing them with microprocessors (CPUs) and microcontrollers (MCUs). You'll learn about the dedicated applications and the hardware-software integration that defines embedded systems. Test your understanding of embedded systems and their roles in technology.
