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অপারেটিং সিস্টেমের বুটস্ট্র্যাপ লোডার প্রোগ্রামের প্রথম ইনস্ট্রাক্টর ____________-এ সংরক্ষিত থাকে।

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NIMCET 2017 Official Paper
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  1. RAM
  2. হার্ড ডিস্ক
  3. বায়োস (BIOS)
  4. কোনোটিই নয়

Answer (Detailed Solution Below)

Option 3 : বায়োস (BIOS)
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সঠিক উত্তরটি বায়োস (BIOS)

  • অপারেটিং সিস্টেমের বুটস্ট্র্যাপ লোডার প্রোগ্রামের প্রথম ইনস্ট্রাক্টর BIOS (বেসিক ইনপুট / আউটপুট সিস্টেম) এ সংরক্ষণ করা হয় 
  • বুটস্ট্র্যাপ লোডার এমন একটি প্রোগ্রাম যা EPROM, ROM বা মেশিনের অন্যান্য অ-উদ্বায়ী(নন-ভোলাটাইল) মেমরিতে থাকে।
  • ডিভাইসটি চালু করার পরে এটি স্বয়ংক্রিয়ভাবে প্রসেসর এটিকে কার্যকর করে। কম্পিউটারের অপারেটিং সিস্টেমটি ইনস্টল করা চালিয়ে যেতে, বুটস্ট্র্যাপ লোডার হার্ড ড্রাইভের বুট সেক্টরটি রিড করে।
  • বুটস্ট্র্যাপ লোডার প্রথমে পাওয়ার-অন করে স্ব-পরীক্ষা পরিচালনা করে। এটিকে POST হিসাবে অর্থাৎ মেশিনটি স্যুইচ করা বা পুনরায় আরম্ভ করার পরে  চিহ্নিত করা হয়।
  • যদি POST সফল হয় এবং কোনও সমস্যা না পাওয়া যায়, বুটস্ট্র্যাপ লোডার মেশিনের জন্য অপারেটিং সিস্টেম লোড করে ।
  • তখন মেশিনটির পক্ষে অপারেটিং সিস্টেম অ্যাক্সেস বা ব্যবহার করা, লোড এবং পরিচালনা করা সম্ভব হয়।
  • যে কম্পিউটারগুলিতে একটি EFI (এক্সটেনসিবল ফার্মওয়্যার ইন্টারফেস) রয়েছে , সেখানে বুটস্ট্র্যাপ লোডার প্রতিস্থাপন করা হয়েছে এবং এখন এটি EFI BIOS এর অংশ।
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