FUNDAMENTALS OF COMPUTER

Detailed explanation-1: -The CD and DVD are the optical recording medium where CD was devised as an audio storage format while DVD is used as the universal storage format. The latter technology DVD can hold data about 7 times more than CD and its format efficiency is also 32% greater than a CD.

Detailed explanation-2: -Optical means it uses lenses. The drive uses a light called a laser. A laser is the most exact and powerful sort of light but the laser in the drive is very, very small. The CD or DVD disk is similar to a mirror and the laser light reflects off it.

Detailed explanation-3: -A Digital Versatile Disc or Digital Video Disc (DVD) is similar to a CD-ROM in that you can only read data from it. The main difference is that the DVD can store much more data than a CD-ROM, CD-R, or CD-RW. DVD+R is a recordable DVD format similar to CD-R.

Detailed explanation-4: -An optical disk is any computer disk that uses optical storage techniques and technology to read and write data. It is a computer storage disk that stores data digitally and uses laser beams (transmitted from a laser head mounted on an optical disk drive) to read and write data.

Detailed explanation-5: -Alternatively called a disc drive, optical media, optical storage, and Optical disc drive, an optical disc is any media read using a laser assembly. The most common types of optical media are Blu-ray, CDs, and DVDs.