what can hold up to 25 times more data than a CD-ROM?
Answers
Answer:
pen drive can hold up to 25 times more data than a CD rom
Both CDs and DVDs offer simple yet safe way for backing up important data without any expensive investments. Let's take a closer look at how they may be used, and which safety issues may arise when using these optical storage devices for backup.
Once so popular CD (Compact Disc) and its writable versions CD-R and CD-RW have been available for quite a while. First CD-R recorder was produced at the end of the eighties, first Yamaha CD-R recorder cost about $35,000. Technology becomes cheaper over time and, now, the same recorder costs about $20. Although DVD (Digital Versatile Disc) came into use a little bit later, it still hasn't completely replaced CDs. There are even more advanced technologies available today, like higher definition DVDs, called Blu-Ray, but they are aimed at quite specific use cases and will probably not become mainstream, since newer technologies are taking over.
It is widely known that DVDs hold about 6 times more data than CDs but it does not mean that CDs are obsolete. The great thing is that both CD and DVD reading and writing devices have become more versatile, making it possible to use different discs in the same device. Since both are so widely used, there is no danger that CD or DVD readers will disappear.