Both the usb flash drive and the dvd are data storage devices, but they both have numerous differences. both can contain insane amounts of data and add to our storage making it even easier to store your photos, videos, and many more types of files. however, the ways both devices operate are very different. the dvd requires a port and a laser to scan the extremely small bumps on dvd thousands of times per minute. this process may take longer than simply plugging your usb drive into a usb port. because the usb has no moving parts, it is faster than to use the dvd drive and it is silent. the newly invented usb flash drive contains 32gb while the older dvd contains about 4.7gb. regardless of the differences in technology and age, both devices are great data storages.
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Data is processed, stored, and transmitted as a series of 1s and 0s. each 1 or 0 is called a(n) . a series of eight 0s and 1s, called a(n) , represents one character—a letter, number, or punctuation mark. data becomes when it is presented in a format that people can understand and use. digital signals are represented by two different , such as +5 volts and +.2 volts. digital data can also take the form of light and dark spots etched onto the surface of a cd or the positive and negative orientation of particles on the surface of a hard disk. data consists of numbers that might be used in arithmetic operations. it can be represented digitally using the number system. data is composed of letters, symbols, and numerals that are not used in arithmetic operations. computers represent this type of data using , ebcdic, unicode, or utf-8. data is quantified using terms such as or kibibyte (1024 bytes), and prefixes such as or mebi (1,048,576), and giga or (1,073,741,824). to reduce file size and transmission times, digital data can be compressed. compression provides the means to compress data and reconstitute it into its original state. compression throws away some of the original data during the compression process. compressed files usually have at the end of the file name and are represented with special icons. these files have to be or unzipped before you can view the data they contain.