megabyte

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megabyte

[′meg·ə‚bīt]
(computer science)
A unit of information content equal to 1,048,576 (1024 × 1024) bytes. Abbreviated Mbyte. Symbolized M.

megabyte

(unit)
(MB, colloquially "meg") 2^20 = 1,048,576 bytes = 1024 kilobytes. 1024 megabytes are one gigabyte.

The text of a six hundred page paperback book would require about a megabyte of ASCII storage.

See prefix.

megabyte

One million bytes, or more precisely 1,048,576 bytes. Also MB, Mbyte and M-byte. See mega, space/time and never say.
References in periodicals archive ?
Box 3990 Florence, South Carolina 29502 (800) 736-7425 Price: Total accounting package, $3,000; fixed-assets module only, $100; contributions module only, $1,100 Requirements: 256 kilobytes RAM, 20 megabytes hard disk, I)OS 2.
The Bernoulli cartridges he uses each hold 10 megabytes of data, but Iomega, maker of the hardware, is now marketing systems with cartridges that hold 44 megabytes each.
The external IBM-based unit uses quarter-inch cartridge (QIC) tapes and can store up to 800 megabytes of data.
Start with a 486DX2/66 microprocessor, add 340 megabytes of hard disk storage, 8 megabytes of RAM, a double-speed CD-ROM drive, 14400 baud modem with fax capability, 15-inch color monitor and 16-bit video.
Hardware: MacIIxi design workstation with 8 megabytes of RAM, 100-300 megabyte internal hard drive, laser printer, full-color, high-resolution, refrigerator-sized double-page display monitor, accelerator board, network hardware including a file server to link your department with other workstations and client groups, cd-room drive, mass magnetic media storage system, 9600 baud modem, color scanner, color printer and maybe even a super high resolution output device such as a Linotronic L-300.
Minimum 120-megahertz, and 16 megabytes of system RAM.
Pinnacle's Tahoe-230 drive still retails at a low $999 for Macintosh computers and $1,199 for PCs, the same price as smaller 130 megabyte drives.
Hard disk: Get at least a gigabyte of hard disk space if you buy an IBM-compatible, and 700 megabytes if you want a Mac.
The COMPAQ ProLinea 4/50, which comes standard with 4 megabytes of RAM (expandable to 32MB), includes a Model 120, with a 120-megabyte hard drive, priced at $2,049, and Model 240, with a 240-megabyte hard drive, priced at $2,249.
The first devices to run the software will have less than 1 megabyte of main memory and also use less powerful microprocessors.
The Momenta Computer 1/80 is now available with 8 megabytes of RAM, an 80 megabyte hard drive with a suggested retail price of $4,495.