Which technoly is used in compact disk?

Which technoly is used in compact disk? Correct Answer laser

Compace Disk ( CD) তথ্য ধারণের একটি চাকতি বিশেষ । ডিজিটাল তথ্য যেমন- লেকা, ছবি, ভিডিও গান, প্রভৃতি রাখার একটি প্রযুক্তি । লেজারের সবচেয়ে ব্যাপক ব্যবহার করা হয় তথ্য সংরক্ষণে ও পুনরুদ্ধারে।
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