Exam 20: Recording and Storage Formats

Ordinary light, such as a light bulb, is referred to as

What part of a videotape recording serves a similar function to perforations in film?

The primary difference between magnetic and optical media is that optical media is volatile.

Industrial-grade rubies are often used as the lens material for CDs and DVDs, accounting for the red color of common lasers.

Which optical laser beam has the smallest wavelength, allowing it to read and record much more content on the same size disc than a laser with a bigger wavelength?

When a laser beam is directed from the laser source to an optical disk and energized, it creates a physical change in the structure of that disk known

CDs and DVDs are the same type of optical media.

While the flow of digital data is measured in bits, all digital memory is measured in bytes.

One of the most impressive aspects of optical media is its ability to record and store both analog and digital data.

Grouping drives together in a system allows data to be duplicated on more than one drive and also allows for more storage than a single drive. This grouping can be arranged to decrease the amount of time it takes to record and reproduce files.