تدريب Shadowing: Embedded Systems Explained in 3 minutes - تعلم التحدث بالإنجليزية عبر الفيديو
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An embedded system is an autonomous electronic and computer system, with the goal of executing a well -defined task in real -time.
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Here we see the first difference from a PC, which is versatile because it can run many types of applications, whereas an embedded system only performs a dedicated function.
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Furthermore, embedded systems are often invisible to the user
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because they are integrated within a device
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that itself serves a function for example a microwave oven an
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airplane a washing machine etc domains of embedded systems are primarily
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found in the following areas first we have general computing similar to pc applications
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but integrated into an embedded system such as smartphones tablets etc
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then systems control such as motor control automotive applications aviation
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and navigation systems also signal processing with examples like radar sonar
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and video compression and finally communication and networks involving information transmission telephony
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and the internet for example
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so as you can see there are many embedded systems today
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embedded systems far outnumber computers in terms of quantity an embedded system typically consists of microcontroller that solves a specific problem,
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often subject to time and size constraints.
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A microcontroller is an integrated circuit that combines essential computer elements that includes a processor to provide computing power,
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a central memory, often limited, containing the program and data, sensors acting as inputs to receive information,
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such as temperature, vibration, humidity,
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proximity, pressure, or contact, and actuators or outputs that allow the embedded system to perform actions on the external real world environment.
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These can include LEDs, display screens, speakers, alarms, or a combination of these, as seen in an airplane cockpit.
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Finally, embedded systems are equipped with communication means that enable them to communicate via the internet with external applications and end users.
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This is the phenomenon of the Internet of Things, or IoT.
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It's important to note
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that there is a significant difference between embedded systems based on the device in
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which they are embedded and the complexity of the task they perform.
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On one hand, there are small -scale embedded systems with very simple hardware
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and software sufficient for basic tasks like a coffee machine that transforms your coffee capsule.
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On the other hand, there are advanced and sophisticated embedded systems found in devices like airplanes,
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designed to facilitate piloting and improve safety.
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The design of an embedded system typically depends on the characteristics and constraints of the device in which it is integrated.
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This includes considerations such as weight and size, program size and required execution time, especially for embedded systems with basic hardware.
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The appropriate hardware to run the software Energy consumption,
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optimized based on the size and complexity of the embedded system Continuity of operation,
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which requires embedded systems to withstand harsh external conditions such as vibrations, shocks, temperature variations, and weather And finally,
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manufacturing costs, determined by the aforementioned constraints Thanks a bunch for tuning in.
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To stay in the loop with all things tech and computer science, be sure to click that subscribe button and ring that notification bell.
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Goodbye.
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المفردات وملاحظات التحدث لهذا الدرس
هذا الدرس في المحادثة بمستوى C1 مبني على الفيديو “Embedded Systems Explained in 3 minutes”. أكثر الكلمات تكرارًا في الفيديو: embedded, integrated, applications, device, computer. يحتوي هذا الفيديو على 37 جملة و509 كلمة للتدرب على الترديد. مدة الكلام 3:48. يتكلم المتحدث بسرعة ثابتة، نحو 134 كلمة في الدقيقة، وهي سرعة مريحة للترديد. 75% فقط من الكلمات ضمن أكثر 3,000 كلمة شيوعًا في الإنجليزية، فالمفردات صعبة نسبيًا.
أهم المفردات في هذا الفيديو
أصعب 15 كلمة في الفيديو، مع النطق والمعنى:
| الكلمة | النطق | المعنى |
|---|---|---|
| embed فعل | /ɪmˈbɛd/ | طَمَرَ |
| constraint اسم | /kənˈstɹeɪnt/ | متطلب |
| airplane اسم | /ˈɛɹˌpleɪ̯n/ | طَائِرَة, طَيَّارَة |
| vibration اسم | /vaɪˈbɹeɪʃən/ | اِهْتِزَاز |
| complexity اسم | /kəmˈplɛk.sɪ.ti/ | تَعْقِيد |
| dedicate فعل | /ˈdɛdɪˌkeɪt/ | كَرَّسَ, قَدَّمَ |
| withstand فعل | /wɪðˈstænd/ | قَاوَمَ |
| microwave اسم | /ˈmaɪkɹoʊˌweɪv/ | مَوْجَة الْمَيْكْرُووِيف, مَوْجَة دَقِيقَة |
| humidity اسم | /hjuːˈmɪd.ə.ti/ | رُطُوبَة |
| autonomous صفة | /ɔˈtɑnəməs/ | اِسْتِقْلَالِيّ |
| proximity اسم | /pɹɒkˈsɪm.ɪ.ti/ | قرب |
| sensor اسم | /ˈsɛn.sɚ/ | حَسَّاس, جِهَازُ اِسْتِشْعَار |
| notification اسم | /ˌnoʊtɪfɪˈkeɪʃn̩/ | إِشْعَار, إِخْطَار |
| execute فعل | /ˈɛksɪˌkjuːt/ | أَعْدَمَ |
| characteristic اسم | /ˌkæɹ(ə)ktəˈɹɪstɪk/ | صِفَة |
نطق يحتاج إلى انتباه
- أصوات “sh” و“zh”: vibration /vaɪˈbɹeɪʃən/, aforementioned /əˈfɔɹˌmɛn.ʃənd/, compression /kəmˈpɹɛʃ.ən/, notification /ˌnoʊtɪfɪˈkeɪʃn̩/, navigation /nævɪˈɡeɪʃən/
- الكلمات الطويلة — انتبه لموضع النبر: microcontroller /ˈmaɪkɹoʊkənˌtɹoʊlɚ/, complexity /kəmˈplɛk.sɪ.ti/, actuator /ˈæk.tjuː.eɪ.tə(ɹ)/, telephony /təˈlɛf.ə.ni/, aforementioned /əˈfɔɹˌmɛn.ʃənd/
أصوات يجدها متحدثو العربية صعبة:
- /p/ — ليس /b/: انطقه مع نفخة هواء: airplane /ˈɛɹˌpleɪ̯n/, compute /kəmˈpjuːt/, complexity /kəmˈplɛk.sɪ.ti/, optimize /ˈɑptɪmaɪz/, equip /ɪˈkwɪp/
- /v/ — ليس /f/: مع اهتزاز الأوتار الصوتية: vibration /vaɪˈbɹeɪʃən/, versatile /ˈvɜː.səˌtaɪl/, microwave /ˈmaɪkɹoʊˌweɪv/, automotive /ˌɔtəˈmoʊtɪv/, navigation /nævɪˈɡeɪʃən/
- تتابع الصوامت — لا تضف حركة بينها: constraint /kənˈstɹeɪnt/, airplane /ˈɛɹˌpleɪ̯n/, compute /kəmˈpjuːt/, microcontroller /ˈmaɪkɹoʊkənˌtɹoʊlɚ/, complexity /kəmˈplɛk.sɪ.ti/
كيف تتدرب بهذا الفيديو
- استمع إلى الفيديو كاملًا مرة واحدة دون أن تتكلم، ودوّن الكلمات التي لا تعرفها.
- ردّد جملة جملة بالسرعة العادية، وكرّر كل جملة حتى يتطابق إيقاعك مع المتحدث.
- سجّل صوتك وقارنه بالأصل، مع الانتباه إلى كلمات مثل embed, constraint, airplane.
ما هي تقنية التظليل الصوتي؟
التظليل الصوتي (Shadowing) تقنية تعلم لغة مدعومة علمياً، طُورت أصلاً لتدريب المترجمين الفوريين المحترفين. الطريقة بسيطة لكنها قوية: تستمع لصوت إنجليزي أصلي وتكرره فوراً بصوت عالٍ — كظل يتبع المتحدث بتأخير 1-2 ثانية. تُظهر الأبحاث تحسناً كبيراً في دقة النطق والتنغيم والإيقاع وربط الأصوات والاستماع والطلاقة.