write short note on the following in hard disk pen drive CD/DVD CPU Computer system
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CD:-CD stands for Compact Disc. It is circular in shape and used to store information (like movies, music, documents, etc.) Permanently. CDs are used through the DVD-ROM drive.
DVD :-DVD stands for Digital Versatile Disc. It is also in circular in shape and used to store information (likemovies, music, documents, etc.) Permanently.A DVD can store more than CD. It is an example of storage device.
CPU:- CPU stands for Central processing Unit. It is called brain of computer. CPU contain mother board. Computer processes the data in its CPU using the instructions provided.
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