DVD ROM, Combo Drives and other Storage Devices

• Digital versatile Disk storage data digitally.
• DVD can store more data than seven CDs.
• DVD is made up of layers of polycarbonate plastic that are covered by reflective layer of aluminium and old.
• DVD is about 1.2 millimeters in thickness.
• Data in DVDs is stored in pits that are measured in nanometers.
• The pits of data form spiral tracks on the DVD.
• Single-Sided- single-layered, Single-Sided Double-layered, Double-sided Single-layered, and Double-Sided double-layered are four construction formate for DVD.
• DVD-ROM, DVD-Video, DVD-Audio, DVD-R and DVD+R, DVD-RW and DVD+RW, DVD-RAM, DVD-VR and DVD+VR are the types of DVD.
• Motor, Laser, Lens, and Tracking Mechanism are the different parts of DVD-ROM drive.
• IDE cable connects the DVD drive to the motherboard of the computers.
• Power-in connector connects the power adapter to the DVD drive.