Name the versions and format of a DVD.
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The versions of a DVD are single-sided and double-sided.
A DVD is available in many formats such as :
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Write the types of plotters. Name any two manufacturers of plotters.
What is the storage capacity of Blu-ray Disk in GB?
When and by whom was hard disk invented? Write the other name of hard disk.
Write the full form of VDU, CD-ROM, MICR, OCR, and OMR.