5. OCR GCSE (J277) 1.1 Embedded systems
Summary
TLDRThis video delves into embedded systems, computers with a specific function within larger systems. Key features include low power, small size, and low cost. Examples range from portable devices like digital watches to complex systems in vehicles and hospitals. They're often based on microcontrollers or CPUs, designed for efficiency and reliability, with programming challenges due to limited resources.
Takeaways
- 💻 **Definition**: An embedded system is a computer system with a dedicated function within a larger mechanical and electrical system.
- 🌟 **Prevalence**: 98% of all processors are used in embedded systems.
- 🚀 **Historical Example**: The Apollo guidance computer was an early example of an embedded system.
- 📱 **Diversity**: Embedded systems range from portable devices like digital watches to large installations such as traffic lights.
- 🏭 **Applications**: They are used in various sectors including hospitals, automotive, and industrial controls.
- 🔩 **Components**: Modern embedded systems are often based on microcontrollers or CPUs with integrated memory.
- 🔋 **Characteristics**: They are known for low power consumption, small size, and low per-unit cost.
- 🛠️ **Customization**: Systems are often custom-designed for specific applications.
- 💾 **Limitations**: Limited processing resources can make programming and interaction more challenging.
- 🔧 **Optimization**: Design engineers optimize embedded systems for size, cost, reliability, and performance.
- ☕ **Production**: Some embedded systems like coffee machines are mass-produced, benefiting from economies of scale.
Q & A
What is an embedded system?
-An embedded system is a computer system with a dedicated function, designed to be part of a larger mechanical or electrical system.
What percentage of all processors are used in embedded systems?
-Ninety-eight per cent of all processors are manufactured as components of embedded systems.
Can you provide an early example of an embedded system?
-One of the earliest examples of an embedded system was the Apollo guidance computer used for the moon missions.
What is the range of applications for embedded systems?
-Embedded systems can range from portable devices like digital watches and MP3 players to large installations such as traffic lights, factory controllers, and complex systems like hybrid vehicles, MRI, and avionics.
What are some common components of modern embedded systems?
-Modern embedded systems are often based on microcontrollers, CPUs with integrated memory, and ordinary microprocessors, especially in more complex systems.
Why are embedded systems often custom-designed?
-Embedded systems are often custom-designed for the specific application at hand to optimize performance, reduce size and cost, and increase reliability.
What are some typical properties of embedded computers compared to general-purpose computers?
-Typical properties of embedded computers include low power consumption, small size, rugged operating systems, and low per-unit cost.
What is the trade-off for having an embedded system optimized for a specific task?
-The trade-off for having an embedded system optimized for a specific task is limited processing resources, which can make them more difficult to program and interact with.
How do design engineers benefit from the dedicated nature of embedded systems?
-Design engineers can optimize embedded systems to reduce the size and cost of the product and increase the reliability and performance, tailored to a specific task.
What are some examples of mass-produced embedded systems?
-Some mass-produced embedded systems include coffee machines, which benefit from economies of scale due to their large-scale production.
What are some common examples of embedded systems mentioned in the video?
-Common examples of embedded systems mentioned in the video include traffic lights, domestic appliances, factory equipment, engine management systems, and hospital equipment.
Outlines
💻 Introduction to Embedded Systems
This paragraph introduces the concept of embedded systems, which are computer systems designed for specific functions within larger mechanical and electrical systems. It highlights that 98% of all processors are used in embedded systems, with the Apollo guidance computer being an early example. The paragraph covers a wide range of applications, from portable devices like digital watches to complex systems in vehicles and medical equipment. It also discusses the use of microcontrollers and CPUs in these systems, emphasizing their custom design for specific applications. Properties of embedded systems, such as low power consumption, small size, and low cost, are mentioned, along with the challenges of programming due to limited processing resources. The benefits of optimization for specific tasks and mass production are also touched upon.
Mindmap
Keywords
💡Embedded System
💡Apollo Guidance Computer
💡Microcontroller
💡Low Power Consumption
💡Small Size
💡Rugged Operating Systems
💡Low Per-Unit Cost
💡Optimization
💡Economies of Scale
💡Custom-Designed
💡Limited Processing Resources
Highlights
Embedded systems are computer systems with a dedicated function within a larger mechanical and electrical system.
98% of all processors are manufactured as components of embedded systems.
The Apollo guidance computer used for the moon missions is one of the earliest examples of an embedded system.
Embedded systems range from portable devices to large stationary installations.
Modern embedded systems are often based on microcontrollers with integrated memory.
Ordinary microprocessors are common in more complex systems.
Embedded systems are custom-designed for specific applications.
Embedded computers are characterized by low power consumption, small size, rugged operating systems, and low per-unit cost.
Limited processing resources can make embedded systems more difficult to program and interact with.
Design engineers can optimize embedded systems to reduce size, cost, and increase reliability and performance.
Some embedded systems, like coffee machines, are mass-produced, benefiting from economies of scale.
Embedded systems are dedicated to specific tasks, allowing for optimization.
Typical examples of embedded systems include traffic lights, domestic appliances, factory equipment, engine management systems, and hospital equipment.
Embedded systems have properties like low power consumption, small size, rugged operating ranges, and low cost per unit.
Embedded systems are found in a wide variety of applications, from simple to complex.
The video provides a comprehensive overview of embedded systems and their applications.
Embedded systems are integral to modern technology, from household items to advanced medical equipment.
The video explains the historical significance of embedded systems, starting with the Apollo guidance computer.
Transcripts
- [Craig] In this video, we take a look at embedded systems.
(uplifting piano jingle)
An embedded system is a computer system with a dedicated function
within a larger mechanical and electrical system.
Ninety-eight per cent of all processors are manufactured as components of embedded systems.
One of the earliest examples of an embedded system was the Apollo guidance computer used for the moon missions.
Embedded systems range from portable devices such as digital watches and MP3 players
to large stationary installations like traffic lights, factory controllers
and largely complex systems like hybrid vehicles, MRI and avionics.
Here, we've got examples of instruments used in hospitals,
car engine management systems
and digital clocks.
Modern embedded systems are often based on microcontrollers, CPUs with integrated memory,
but ordinary microprocessors are also common, especially in more complex systems.
They are often custom-designed for the application at hand.
Examples of properties of typically embedded computers, when compared with general-purpose counterparts,
are low power consumption, small size, rugged operating systems and low per-unit cost.
This, of course, comes at the price of limited processing resources,
which can make them significantly more difficult to program and to interact with.
Since the embedded systems are dedicated to a specific task,
design engineers can optimise it to reduce the size and cost of the product
and increase the reliability and performance.
Some embedded systems, such as this coffee machine here,
are mass-produced, further benefiting from economies of scale.
Let's just recap what we've covered in this video.
An embedded system is a computer system with a dedicated function within a larger mechanical system.
Its typical properties include low power consumption, small size, rugged operating ranges and low cost per unit.
Typical examples include traffic lights, domestic appliances, factory equipment,
engine management systems and hospital equipment.
(uplifting piano jingle)
関連動画をさらに表示
What is an Embedded system?
What is a Microcontroller? | Raspberry Pi Pico Workshop: Chapter 1.2
FertiRice App: Alat Rekomendasi Pemupukan dalam Implementasi Pertanian Padi Presisi
Is the C programming language still worth learning?
#400 The Best Power Source for ESP32/ ESP8266 Projects
System Architecture | 1 minute topic introduction | Isaac GCSE
5.0 / 5 (0 votes)