A bit, the smallest data measurement unit, is a magnetized and polarized binary digit that represents stored digital data in random access memory RAM or read-only memory ROM. A bit is measured in seconds and characterized by logical values 0 off or 1 on.
Eight bits equal one byte. Bytes measure device communication speed in thousands of bytes per second. Megabytes continue to apply to a number of measurement contexts, including digitally supported computer and media data, memory and software according to file format as well as compression and drive capabilities. Internet files are often measured in MBs.
By: Justin Stoltzfus Contributor, Reviewer. By: Satish Balakrishnan. Dictionary Dictionary Term of the Day. Gorilla Glass. Techopedia Terms. As such, the capability to put a megabyte of storage into context could help you to manage your Web-based storage. Bits and bytes are two of the most important concepts in computer storage, and understanding them is fundamental to understanding the megabyte. These bits are grouped into units called bytes, with eight bits in each byte.
Each byte roughly corresponds to one letter or number worth of storage. A megabyte is a storage unit comprising roughly one million bytes. It is generally thought of as being equal to 1, kilobytes, where a kilobyte equals 1, bytes. However, this is not always strictly accurate, as some applications especially virtual storage applications may define a megabyte as 1, kilobytes, where a kilobyte is 1, bytes.
This pattern continues with large storage units, with a gigabyte equal to either 1, or 1, megabytes, a terabyte equal to 1, or 1, gigabytes, and so on. Websites such as image-sharing sites, social networks and cloud storage sites may put limits on the size of individual files that can be uploaded.
As such, it is useful to know what one megabyte corresponds to in real terms. One megabyte is equal to eight megabits. The mega prefix denotes that it is equal to one million bytes. Other metric prefixes or binary prefixes for file sizes include tera, giga, and kilo. A megabyte of data is surprisingly small in the modern day, and a CPU can parse these with ease. This international system of units is used across the globe to refer to a unit of information for file sizes for video, audio, MP3, and other file types.
Someone might refer to MBPS, which stands for megabytes per second when referring to download speeds or connection speed, or they could refer to the MB of mobile data that they are charged data usage fees on.
Sometimes a file size will change due to compression. While these alternate definitions are still valid, they are far less common and should be used sparingly. If you do decide to use one of these alternate terms, make sure that you provide the reader with the proper context so that they can infer the correct intended meaning and are not confused.
You should make this a habit with all acronyms that have more than one meaning. Try using flashcards or making bookmarks to learn all of these different meanings! MB can be used in many different circumstances to mean either my bad or megabytes. The abbreviation MB is used in the following dialogs as examples.
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