The megabyte is a multiple of the unit byte for digital information storage or transmission with two different values depending on context: bytes (2²⁰) generally for computer memory; and one million bytes (10⁶, see prefix mega-) generally for computer storage. The IEEE Standards Board has decided that "Mega will mean 1 000 000", with exceptions allowed for the base-two meaning., and DVDs, and is also consistent with the other uses of the SI prefix in computing, such as CPU clock speeds or measures of performance. The Mac OS X 10.6 file manager is a notable example of this usage in software. Since Snow Leopard, file sizes are reported in decimal units. bytes (1024², 2²⁰): This definition is most commonly used in reference to computer memory, but most software that display file size or drive capacity, including file managers also use this definition. See Consumer confusion (in the "gigabyte" article). The Microsoft Windows file manager is a notable example of this usage in software. bytes (1000×1024): This is used to describe the formatted capacity of the "1.44 MB" 3.5 inch HD floppy disk, which actually has a capacity of bytes.

Semiconductor memory doubles in size for each address line added to an integrated circuit package, which favors counts that are powers of two. The capacity of a disk drive is the product of the sector size, number of sectors per track, number of tracks per side, and the number of disk platters in the drive. Changes in any of these factors would not usually double the size. Sector sizes were set as powers of two (256 bytes, 512 bytes and so on) for convenience in processing. It was a natural extension to give the capacity of a disk drive in multiples of the sector size, giving a mix of decimal and binary multiples when expressing total disk capacity.

Examples of use

s can store 1,474,560 bytes of data. MB in this context means 1,000×1,024 bytes.]] Depending on compression methods and file format, a megabyte of data can roughly be: a 1024×1024 pixel bitmap image with 256 colors (8 bpp color depth). 1 minute of 128 kbit/s MP3 compressed music. 6 seconds of uncompressed CD audio. a typical book volume in text format (500 pages × 2000 characters per page).

See also

Binary prefix

Megabit

Orders of magnitude (data)

Timeline of binary prefixes

References

External links

Historical Notes About The Cost Of Hard Drive Storage Space

the megabyte (established definition in Networking and Storage industries; from whatis.com)

International Electrotechnical Commission definitions

IEC prefixes and symbols for binary multiples

Category:Units of information

Shelton ("Shelly") Leigh Palmer is the author of a popular television business news blog, a weekly columnist for the Jack Myers Report, Seeking Alpha, and The Huffington Post, a technology commentator for CNN.com, and the host of the daily webcast MediaBytes and weekly television show Digital Life with Shelly Palmer.

As a composer, Palmer is well known for his music for television. He has composed many familiar themes, including the themes and underscore for Live with Regis and Kelly, Spin City, and MSNBC. In addition, he has composed several television news music packages, the most prolific among them is the Palmer News Package which was originally composed for WCBS-TV. He was the music director for the 2005 New York Emmy Awards.

He was the creator and executive producer of HotPop, a teen lifestyle and music show which aired on Starz/Encore's WAM! Network as well as the patented inventor of Enhanced Television for ABC (Who Wants To Be A Millionaire, Monday Night Football).

Palmer won the award for Most Performed Television Themes at the 12th & 13th Annual ASCAP Film & Television Awards. One of his most noted compositions was “Anthem” which was commissioned by the Parsons Dance Company and received rave reviews from the New York media when it premièred. He has conducted the London Symphony Orchestra and was a guest conductor of the Radio Symphony Orchestra of Moscow during the 1988 Goodwill Games. He also wrote the "Meow Mix" Jingle for the cat food brand.

In 1986, Palmer composed "Let's Go Mets", a song aimed at promoting the eventual World Series-winning team. He also supervised the production of an accompanying music video, as shown in a home video release of the video and a making-of documentary.

Palmer's music also can be heard on the NYC Media Group's Inside the Archives which airs on NYCTV and WNYE-TV.

Published works

External links

Shelly Palmer Bio at Palmer Advanced Media

Category:Living people Category:American television composers Category:Year of birth missing (living people)