The advent of optical discs technology has dramatically changed the way we store and access information. There are two main types of optical discs: CDs and DVDs. While they may seem similar, there are several key differences between them.

CDs are older technology, first introduced in 1982. They have a diameter of 120 millimeters and can store up to 700 megabytes of data. CDs are read by a laser and can only be played on devices that have a CD drive.

DVDs were introduced in 1995 and have a diameter of 120 millimeters. They can store up to 4.7 gigabytes …