وفّر 5٪ من خلال الاشتراك السنوي في مجرة واحصل على تصفح لا محدود لأفضل محتوى عربي على الإنترنت.
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أحد المكونات الإلكترونية السالبة التي لا تنتج الطاقة، افترضها أستاذ الهندسة الإلكترونية "ليون تشو" عام 1971، وصُنِّعت للمرة الأولى عام 2005، وهي عبارة عن مقاومة تتذكَّر القيمة السابقة التي حملتها آخر مرة عملت فيها، وهذا يجعلها -نظرياً- مكوناً مناسباً لتخزين البيانات.
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