|
|
mega- ==>
prefix
1. <unit> The standard metric prefixes used in the Système
International (SI) conventions for scientific measurement.
Here are the SI magnifying prefixes, along with the
corresponding binary interpretations in common use:
prefix abr decimal binary
yocto- 1000^-8
zepto- 1000^-7
atto- 1000^-6
femto- f 1000^-5
pico- p 1000^-4
nano- n 1000^-3
micro- * 1000^-2 * Abbreviation: Greek mu
milli- m 1000^-1
kilo- k 1000^1 1024^1 = 2^10 = 1,024
mega- M 1000^2 1024^2 = 2^20 = 1,048,576
giga- G 1000^3 1024^3 = 2^30 = 1,073,741,824
tera- T 1000^4 1024^4 = 2^40 = 1,099,511,627,776
peta- 1000^5 1024^5 = 2^50 = 1,125,899,906,842,624
exa- 1000^6 1024^6 = 2^60 = 1,152,921,504,606,846,976
zetta- 1000^7 1024^7 = 2^70 = 1,180,591,620,717,411,303,424
yotta- 1000^8 1024^8 = 2^80 = 1,208,925,819,614,629,174,706,176
"Femto" and "atto" derive not from Greek but from Danish.
The abbreviated forms of these prefixes are common in
electronics and physics.
When used with bytes of storage, these prefixes usually denote
multiplication by powers of 1024 = 2^10 (K, M, and G are
common in computing). Thus "MB" stands for megabytes (2^20
bytes). This common practice goes against the edicts of the
BIPM who deprecate the use of these prefixes for powers of
two. The formal SI prefix for 1000 is lower case "k"; some,
including this dictionary, use this strictly, reserving upper
case "K" for multiplication by 1024 (KB is thus "kilobytes").
Also, in data transfer rates the prefixes stand for powers of
ten so, for example, 28.8 kb/s means 28,800 bits per second.
The unit is often dropped so one may talk of "a 40K salary"
(40000 dollars) or "2 meg of disk space" (2*2^20 bytes).
The accepted pronunciation of the initial G of "giga-" is
hard, /gi'ga/.
Confusing 1000 and 1024 (or other powers of 2 and 10 close in
magnitude) - for example, describing a memory in units of 500K
or 524K instead of 512K - is a sure sign of the marketroid.
For example, 3.5" microfloppies are often described as
storing "1.44 MB". In fact, this is completely specious. The
correct size is 1440 KB = 1440 * 1024 = 1474560 bytes. Alas,
this point is probably lost on the world forever.
In 1993, hacker Morgan Burke proposed, to general approval on
Usenet, the following additional prefixes: groucho (10^-30),
harpo (10^-27), harpi (10^27), grouchi (10^30). This would
leave the prefixes zeppo-, gummo-, and chico- available for
future expansion. Sadly, there is little immediate prospect
that Mr. Burke's eminently sensible proposal will be ratified.
2. <language> Related to the prefix notation.
(2003-05-06)
Try this search on OneLook / Google
Nearby terms:
predomain « pre-emptive multitasking « prefetch « prefix » prefix notation » prefix syntax » pre-order
This article was derived from the Free Online Dictionary of Computers and is available under ther terms of the GNU Free Documentation License.
Instant Legal Advisor DeluxeInstant Legal Advisor Deluxe Instant Legal Advisor is a deluxe 4 CD-ROM suite that gives you full control over all your personal and legal documents with one easy-to-access system. This 4 CD suite features powerful software tools that yield quick, professional-quality results. Windows 95/98/ME/2000/XP More ...
A Practical e-Dictionary of CantoneseA Practical e-Dictionary of Cantonese An e-Dictionary of Cantonese is a quick reference for everyday use in Cantonese, with specialized vocabularies applicable to Hong Kong and Canton. Concise yet comprehensive. Windows 95/98/ME/2000/NT/XP and Mac More ...
Hawking 2.4GHz Hi-Gain Omni-Directional AntennaHawking 2.4GHz Hi-Gain Omni-Directional Antenna ** Hawking 2.4 GHz Hi-Gain Indoor Omni-Directional Antenna **Boost your Wireless signal with the Hawking H-AI6SIP 2.4GHz Hi-Gain Wireless Omni-Directional Antenna. The H-AI6SIP is compatible with 802.11b/g wireless standards, works with wireless devices with reverse SMA and TNC plugs, and easy to install. Simply point the Hawking H-AI6SIP Antenna to your Wireless Omni-Directional Antenna in the direction of your Access Point or Network Adapter and easily extend your signal range and quality! Get yours today!General Features:- 802.11b/g wireless standards- Frequency Range: 2.4 GHz ~ 2.4835 GHz- Gain: 6.0 dBi- VSWR: 1.5 Max.- Polarization vertical- Impedance: 50 Ohms- Connector: SMA plug- Cable: RG-316; 2.5 feet- Cable loss per meter 2.5dB/m- Omni-directional antenna- Increase Wireless coverage- Easy mounting set-upRetail Box Includes:- Hawking 2.4 GHz Hi-Gain Indoor Omni-Directional Antenna- RP-SMA to TNC converter- Users manualNote:- Model Number H-AI6SIP- UPC code 6 03992 50495 4 Compatibility/Requirements/Disclosures: ** Requirements *** Wireless access point* Wireless adapter Informational Links: http://www.hawkingtech.com More ...
Wake On Lan CableWake On Lan Cable ** Wake On Lan Cable **Enable the Wake-On-LAN feature of your NIC and Motherboard with this cable. The Wake-on-LAN feature is used when the system is turned off, the NIC monitors the network and watches for a command from the server. Once this command is received, it alerts the system to power up. Features:- High quality - Molded connections More ...
Compaq Sempron 3000+ 256MB 60GB CDRW w/XPCompaq Sempron 3000+ 256MB 60GB CDRW w/XP ** Compaq Sempron 3000+ System **This quality Compaq system offers a powerful combination, featuring an AMD Sempron 3000+ processor, 256 MB RAM, and a large 60 GB hard disk drive that hosts Microsoft Windows XP Home Edition. Create, save and share music, files and photos with the included CDRW, and audio, video, Ethernet and modem are also included. Just supply a monitor to complete this great system. Order yours today!General Features:- Microsoft Windows XP Home Edition pre-installed- AMD Sempron 3000+ processor- 256 MB RAM- 60 GB hard disk drive- CDRW drive- Integrated video- Integrated AC'97 audio controller- Integrated USB controller- Integrated Firewire controller- Integrated Ethernet controller- 56K PCI data fax/modemMotherboard Features:One (1) AGP slot- Three (3) PCI slots (one occupied)- Two (2) 184-pin DIMM slots (one occupied)I/O Ports:- Two (2) PS/2 ports- One (1) 15-pin standard VGA connector- One (1) 9-pin standard serial port- One (1) 25-pin standard parallel port- Six (6) USB ports (four on back, two on front)- Two (2 ) Firewire ports (one on back, one on front)- One (1) RJ-45 standard Ethernet jack- One (1) RJ-11 standard phone jacks- Line-in, microphone and line-out jacks.Card Reader Support:- SmartMedia (SM)- MultiMedia Cards (MMC)- Secure Digital (SD)- Compact Flash type I & II- Memory Stick and Memory Stick Pro (MS & MS Pro)Case Features:- Two (2) 5.25-inch external drive bays (one occupied)- One (1) 3.5-inch external drive bay (occupied)- Two (2) 3.5-inch internal drive bays (one occupied)- 100-240V, 50-60 Hz power supplyCase Dimensions:- 14.5 x 8 x 15.5-inches (H x W x D)Regulatory Approvals:- FCC- ULFactory Brown Includes:- Microsoft Windows XP Home Edition pre-installed- Compaq SR1300NX system- HP PS/2 multimedia keyboard- HP PS/2 3-button scroll mouse- Microsoft Windows XP Home Edition Start Here guide- HP Pavilion Home PC Quick Start Guide- Power cord- RJ-11 standard phone cordNotes:- Model: PN195AAR- P/N: SR1300NX- UPC: 8 29160 89452 2 Compatibility/Requirements/Disclosures:** Requirements *** VGA monitor* Available power outlet More ...
64MB SDRAM PC66 168-Pin DIMM64MB SDRAM PC66 168-Pin DIMM ** 64MB SDRAM PC66 168-Pin DIMM **- 64 MB DIMM Module- 168 Pin PC-66- Major/3rd- - Synchronous- Non ECC- Unbuffered Compatibility/Requirements/Disclosures:* Important note when buying memory: We only supply highquality parts that can be used in PC's reliably over thelong term. We supply only brand name memory on 3rd partymodules. * Country of Origin: Singapore, Canada, Korea, USA, Japan,Italy** Disclosures *** Picture is for representational purposes only More ...
|
