|
|
signal-to-noise ratio
1. <communications> (SNR, "s/n ratio", "s:n ratio") "Signal"
refers to useful information conveyed by some communications
medium, and "noise" to anything else on that medium. The
ratio of these is usually expressed logarithmically, in
decibels.
2. <networking> The term is often applied to Usenet
newsgroups though figures are never given. Here it is quite
common to have more noise (inappropriate postings which
contribute nothing) than signal (relevant, useful or
interesting postings). The signal gets lost in the noise
when it becomes too much effort to try to find interesting
articles among all the crud. Posting "noise" is probably the
worst breach of netiquette and is a waste of bandwidth.
[Jargon File]
(1996-01-29)
Try this search on OneLook / Google
Nearby terms:
signal « signalling rate « Signalling System 7 « signal-to-noise ratio » signature » sig quote » sig virus
This article was derived from the Free Online Dictionary of Computers and is available under ther terms of the GNU Free Documentation License.
Beginning Reading - Different Tune/It's MagicBeginning Reading - Different Tune/It's Magic Developed by teachers and educational experts, School Zone's On-Track Software Beginning Reading 1-2 helps children learn to read using simple sentences, repeated and rhyming words, picture clues and more. Windows 95/98/ME/2000/XP and Mac More ...
Dell Inspiron 7000/3000/3200/3500 AC AdapterDell Inspiron 7000/3000/3200/3500 AC Adapter ** Dell PA4 AC Adapter **For use with these Dell Inspiron Series Laptops:- 3000 Series- 3200 Series- 3500 Series- 7000 Series- Input voltage: 90 to 264 VAC- Input current (maximum): 1.5A at 90 VAC, full load- Output current: 2.4A continuous- Output power: 70W and 19 voltsIncludes:- Ac adapter & power cord More ...
IBM Notebook Compatible 45W 19V AC AdapterIBM Notebook Compatible 45W 19V AC Adapter ** IBM Notebook Compatible 45W 19V AC Adapter **This 19 Volt AC Adapter is ideally suited to power your IBM i1400, i1500, 380, 560, 600 series notebooks! Pick up a spare AC power adapter for your IBM notebook today!General Features:- 45W AC adapter- Output Volt: 19V- Output AMP: 2.4A- Input Voltage: AC 100-240V- Power LEDCompatible Models:- i1400 series- i1410- i1411- i1420- i1421- i1422- i1436- i1452- i1460- i1472- i1480- i1482- i1483- i1492- i1500 Series- i1512- i1540- i1541- i1542- i1552- i1560- i1562- i1592- 380 Series- 380D- 380E- 380ED- 380XD- 380Z- 385- 385D- 385ED- 385XD- 560 Series- 560E- 560X- 560Z- 570- 570E- 600 Series- 600D- 600E- 600X- 660Retail Package Includes:- IBM Notebook Compatible 45W 19V AC AdapterNotes:- Model: AC19V2.4-IBM Compatibility/Requirements/Disclosures:** Requirements *** Compatible IBM notebook* Available power outlet More ...
OptoRite 52x32x52 CD-RW IDE Drive (Beige/Black)OptoRite 52x32x52 CD-RW IDE Drive (Beige/Black) ** OptoRite 52x32x52 CD-RW IDE Drive w/SW (Beige/Black) **Back-up data and burn your favorite CDs with this Optorite CW-5207 CD-RW IDE drive! Featuresinclude 52x write speeds, 32x rewrite speeds and52x read speeds! This CW-5207 supports Clone CD so you can back-up real 1:1 copies of your CD's and ExacLink technology prevents buffer under run errors! A spare Black bezel is included with this package so you can customize the look of your drive! Order yours today!General Features:- Beige Bezel (Spare Black Bezel also included!)- 52x maximum write speed- 32x maximum rewrite speed- 52x maximum read speed- 2 MB Buffer- Access Time: 85 ms- E-IDE UDMA/33 interface - ExacLink technology - EXACT-Rec - AWSS technology reduces vibration and noise- Supports Clone CD - Horizontal or vertical mounting orientation Writing Type: - DAO- TAO- SAO- DAO-RAW- Multisession- Packet writing Supported Media Type:- CD-DA- CD-ROM/XA- Mixed mode CD- CD-I- Video-CD- Photo CD- CD Extra- CD-TEXT- Bootable CD Front Panel Features:- Headphonein jack- Volume Control dial- Busy LED- Emergwncy eject hole- Play/Forward button- Stop/Eject buttonRear Panel Features:- Digital audio connector- Analog audio connector- Device jumpers- IDE interface- 4-pin power connectorRegulatory Approvals:- FCC- UL- CERetail Box Includes:- Optorite 52x32x52 CD-RW IDE Drive- Black Bezel- Nero Express 6 Software- Audio cableNotes:- Model: CW-5207- UPC: 8 20171 00026 1- EAN: 4 710891 170268 Compatibility/Requirements/Disclosures:** Requirements *** Microsoft Windows 95/98/Me/2000/XP* Pentium II 400 MHz or higher* 64 MB RAM or above* 800 MB - 1 GB Hard Drive* Available 5.25 drive bay More ...
256MB SDRAM PC133 168-Pin DIMM (16 Chip)256MB SDRAM PC133 168-Pin DIMM (16 Chip) ** 256 MB SDRAM PC-133 168-pin DIMM **- 256 MB DIMM- 168-pin PC-133- 32 x 64- Double-side 16 chip Compatibility/Requirements/Disclosures: ** Requirements *** Motherboard that takes PC-133 DIMMs** Disclosures *** Picture is for representational purposes only More ...
Barebones Server Dual Slot 1 w /Vid/NIC/SCSI3Barebones Server Dual Slot 1 w /Vid/NIC/SCSI3 ** Barebones Server Dual Slot 1 w /Vid/NIC/SCSI3 **General Features:- Intel OEM Columbus II Chassis with Dual N440BX Based Motherboard- Bare bone system- Supports up to 550MHz CPUs- Single CPU Terminator not included. You must use TWO CPUs- ATX Type P/S. Holds 6 3.5 HH devices in the rear, 3 5.25 devices in the front and 1 floppy drive (FD Is included)- 4 DIMM slots. Up to 1GB RAM supported. SPD DIMMS required. See intel.com for more information.- 4 PCI Slots - 2 ISA Slots - 2 Slot 1 CPU sockets. (No terminator provided)- Onboard video / NIC / SCSI 3 / IDE / COM / LPT / PS2 KYBD/MOUSE.- The backplane opening is specific to this motherboard but the mounting pattern is standard ATX.- You may use an aternate motherboard but you will need to craft the backplane bezel yourself. More ...
|
