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Relatively Simple Technology Drive Barcode Scanners
There is no question that barcode scanners are one of the most important innovations ever to hit the supply chain. No matter where a product is in production, in shipping, or in the sales channel it is touched by barcode scanners. Industry has come to be so reliant on this simple technology that it is hard to image that we could get by without it. But what about the barcodes that the barcode scanners read? What do they mean?
The barcodes we see in the grocery store are the standard barcodes that are also referred to as UPC code. UPC stands for Universal Product Code. For something that looks so random it is actually extremely detailed in its design. Each of the bars has a precise height and width. Many also have a series of numbers and letters below the black and white bars. The size of each bar is representative of specific information such as model number, location, and the like. Each digit on the code has a meaning. For example, the first 6 digits may represent the manufacturer and the remaining digits the item number. A person has to have the job of assigning these numbers which means that there are a lot of UPC coordinators out there. Each manufacturer will have to have someone whose responsibility it is to assign the number and make sure there is no duplication.
In addition to the manufacturer number and item number, each barcode has what is known as a check digit. This is the very last number of the code. Each time an item is scanned an algorithm is calculated. If the last UPC digit equals the calculated number then the barcode scanner knows that the item has scanned correctly. It is significant to remember that some businesses create their own barcodes for specific purposes. For most of us understanding what a UPC is will normally suffice.
Now, for the job of the actual barcode scanners. These relatively simple machines have the job of taking the number off of the package and getting it to a computer database where it can be used for things such as stock control or customer purchase.
Barcode scanners consist of three basic elements: a source of illumination, a sensor/converter, and a decoder. The source of illumination is either LED (light-emitting diode) or laser. This is the part that is run across the code in order to "read" it. Using the reflection of the light back to the sensor the code information is converted from an analog signal to a digital signal. It is this digital signal that is decoded and sent to the computer or other device that will use the information.
Actual barcode scanners range from the simplest, a pen style single LED tool, to the sophisticated laser barcode scanners. Regardless of how sophisticated the illumination system the process works the same. The key variation in the different lighting systems is how quickly they work and what their range is. The pen style, for example, must be run across the code in order to pick up all the information while a high end laser system can scanned from a remarkably long distance.
About the Author
ASP offers a great variety of barcode scanners of all types - Handheld Scanners, USB Scanners, WiFi Scanners, 2D Scanners, Bluetooth Scanners, barcode scanner, barcode reader, and many other types and other brands.
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Wireless N Usb Pen Drive $11.99 WIRELESS N USB PEN DRIVE |
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Pen shape Usb flash drive,Usb Pen flash drive for gift,1G,2G,4G,8G,16G,5pcs/lot $46.18 Pen shape Usb flash drive,Usb Pen flash drive for gift,1G,2G,4G,8G,16G |
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Analog Wideband Air/Fuel Ratio Gauge by AEM $199.99 Universal;Black face with red pointer;2-1/16" gauge housing Analog Wideband Air/Fuel Ratio Gauge by AEM |
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Dane-Elec 8GB Pen Drive USB 2.0 Flash Drive $13.99 0.50" 0.80 oz 1" 2.50" 8 GB 8GB Pen Drive USB 2.0 Flash Drive Compatible with Macs and PCs Light Weight Capless Design Fast Reading and Writing Speeds DA-ZMP-08G-CA-N4-R Dane-Elec Dane-Elec Memory Flash Drive Pen Drive USB 2.0 www.dane-elec.com |
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OCZ Technology / 8GB Rally2 USB2 DC Pen Drive / OCZUSBR2DC-8GB $30.88 OCZ Technology - 8GB Rally2 USB2 DC Pen Drive - OCZUSBR2DC-8GB |
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Dane-Elec Memory / 32GB CAPLS USB PEN DRIVE / DA-ZMP-32G-CA-A1-C $50 Dane-Elec Memory - 32GB CAPLS USB PEN DRIVE - DA-ZMP-32G-CA-A1-C |
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Duracell / 16GB USB Pen Drive-Capless / DU-ZP-16G-CA-N3-R $24.14 Duracell - 16GB USB Pen Drive-Capless - DU-ZP-16G-CA-N3-R |
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Leather 16 GB USB Pen Drive $295 Keep track of your most prized files with Lamborghini's colorful leather 16 GB pen drive featuring the shield logo and a ring for keys. Italian design. |
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Akai Professional Analog Custom Shop Drive Classic Analog Fuzz Box $179 Adjust the level, tone and fuzz knobs on this Akai Professional Drive classic analog fuzz box to match your style of play. A toggle switch lets you choose from Muffy, Boost and Warm options, so you can achieve customized sound. |
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Pen shape Usb flash drive,Usb Pen flash drive for gift,1G,2G,4G,8G,16G $5.35 Pen shape usb 1.Storage:1G,2G,4G,8G,16G 2.Design:LOGO Print Free 3.Shipping:TNT,DHL,UPS,EMS,FedEx 4.Certificate:CE,FCC,ROHS |
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Analog Board $87.62 High Quality Content by WIKIPEDIA articles An analog board is a circuit board that contains the majority of analog circuitry in certain Apple Macintosh computers. The analog board was one of two circuit boards within many early Macintosh computers, including the Macintosh 128K/512K/Plus, Macintosh SE series, and Macintosh Classic series. Some later allinone Macintosh computers also included analog boards, with the most recent being the iMac G3 and eMac. In these computers, the analog board functioned as the power supply to other parts within the system, and also functioned to drive the CRT display within the computer. The other board was the logic board, which contained all of the computers digital logic circuitry, such as the processor and memory. Author: Surhone, Lambert M./ Tennoe, Mariam T./ Henssonow, Susan F. Binding Type: Paperback Number of Pages: 116 Publication Date: 2010/10/18 Language: English Dimensions: 9.02 x 5.98 x 0.28 inches |
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4GB USB2.0 Flash Memory Pen Stick Drive $20.49 Product Description:This is a trusted flash memory drive. This drive comes with a string hole for easy carrying ( not included string )Aluminium Coated USB Drive Capacity: 4GB4GB Flash Memory Pen is made of transparent red color with aluminium coatedDimensions-Pocket Sized: 6.8 x 2 x 0.8cmWeight: 25gCompliance-For use with High Speed USB 2.0 and belowTransfer Rate-up to 4.8 MB/sOperating system compatibility windows 2000/XP/VistaPackage:1 x 4GB Memory Stick Drive |
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High quality 2GB/4GB/8GB/16GB USB Flash Drive Pen with Laser for free shipping $18.99 Wholesale High quality 2GB/4GB/8GB/16GB USB Flash Drive Pen with Laser for free shipping |
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New Arrival - Pen Shape USB Flash Drive 4GB,USB Pen Drive, Mini Pen USB Storage Device $7.2 Pen shape usb 1.Storage:1G,2G,4G,8G,16G 2.Design:LOGO Print Free 3.Shipping:TNT,DHL,UPS,EMS,FedEx 4.Certificate:CE,FCC,ROHS |
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FREE SHIPPING 1G USB 2.0 Flash Memory Stick Drive Pen Jump Fold #8037 $58 USB 2.0 Flash Memory Stick Drive Pen Jump Fold |
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4GB USB 2.0 Flash Memory Stick Drive Pen Jump Fold #8039 $6.64 4GB USB 2.0 Flash Memory Stick Drive Pen Jump Fold |
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Freeshipping Guaranteed Full Capacity Bamboo Shell USB Flash Memory Pen Drive $11.36 Guaranteed Full Capacity Bamboo Shell USB Flash Memory Pen Drive |
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CET Domain SZ051022 Porcelain Pen Plus 1GB USB Drive Package $61.52 Perhaps you need a unique gift for someone important or just want a great gift for yourself' then this ceramic pen + USB drive set is perfect for you The ceramic pen + USB drive set features a beautiful ceramic ball point pen and a truly unique ceramic 1GB USB drive. Each piece of the ceramic pen + USB drive set is carefully designed and crafted with great worksmanship and genuine materials. Material: Porcelain' Ceramic. Dimensions: Pen Length: 14.5cm Box Size: 18 cm 11.5 cm 3.5 cm. This item takes between 721 days to ship/arrive because it ships out of Hong Kong or China. |
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DaneElec 32Gb Pen Drive Aqua Capless 2.0 Usb Drive $42.47 The Dana Elec 32GB USB 2.0 Capless Pen Drive is the perfect any time any place flash memory solution. The silky rounded case is designed to slide open not off so you won t lose your data. This 32GB USB pen drive brings the durability and compact form factor of flash memory to all your portable data storage and transfer needs. 32GB USB 2.0 pen drive. The perfect any time any place flash memory solution. Brings the durability and compact form factor of flash memory to all your portable data storage and transfer needs. Compatible with Mac and PC systems. Dimensions: 5 L x 3.75 W x 1 H. |
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Dropship Free shipping 2GB 4GB 8GB 16GB Mickey Mouse USB 2.0 Flash Drive Fashion Silicon Cover Pen drive $13.68 2GB 4GB 8GB 16GB USB 2.0 Flash Drive Fashion Silicon Cover Pen drive(Mickey Mouse NO.2 ) |
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Dropship! Free shipping 2GB 4GB 8GB 16GB Gloomy Bear USB 2.0 Flash Drive Fashion Silicon Cover Pen drive $13.68 2GB 4GB 8GB 16GB USB 2.0 Flash Drive Fashion Silicon Cover Pen drive(Gloomy Bear ) |
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Akai Professional Analog Custom Shop Drive Distortion Pedal for Electric Guitars $179 Add custom distortion effects to your performance with this Akai Professional Analog Custom Shop distortion pedal that features level, tone and distortion knobs and a Drive switch for versatile distortion. |
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CET Domain SZ051023 Porcelain Pen Plus 2GB USB Drive Package $63.74 If 1GB of space wasn't enough for you' try our ceramic pen + USB drive set This ceramic pen + USB drive set features a ceramic ball point pen and a 2GB USB drive. Perfect for giving to someone as a gift or treating yourself to something nice' the ceramic pen + USB drive set is truly a unique and practical item. Each piece in the ceramic pen + USB drive set is crafted beautifully in a traditional Chinese cultural design to make it special and authentic. Material: Porcelain' Ceramic. Dimensions: Pen Length: 14.5cm Box Size: 18 cm 11.5 cm 3.5 cm. This item takes between 721 days to ship/arrive because it ships out of Hong Kong or China. |
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CET Domain SZ051024 Porcelain Pen Plus 4GB USB Drive Package $73.1 Grab our new ceramic pen + USB drive set gift before it sells out This ceramic pen + USB drive set is truly a unique and practical gift for the friend' family' loved one or business partner. The ceramic pen + USB drive set features a ceramic ball point pen and 4GB of USB drive memory space. Made with genuine design and materials' the ceramic pen + USB drive set is a work of art made from great worksmanship and traditional Chinese design. Material: Porcelain' Ceramic. Dimensions: Pen Length: 14.5cm Box Size: 18 cm 11.5 cm 3.5 cm. This item takes between 721 days to ship/arrive because it ships out of Hong Kong or China. |
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CET Domain SZ051025 Porcelain Pen Plus 8GB USB Drive Package $94.21 Our new ceramic pen + USB drive set gift is perfect for gifting to your friends' family members' loved ones and business partners. The ceramic pen + USB drive set features a ceramic ball point pen and an 8GB USB drive. Each piece of the ceramic pen + USB drive set is made with genuine ceramic material and traditional Chinese design to keep it authentic and unique. The ceramic pen + USB drive set is truly a work of art and will be the center of all attention around the receiver. Material: Porcelain' Ceramic. Dimensions: Pen Length: 14.5cm Box Size: 18 cm 11.5 cm 3.5 cm. This item takes between 721 days to ship/arrive because it ships out of Hong Kong or China. |
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Kingwin KWCR721 HiSpeed Usb 2.0 24In1 Card Reader And Pen Drive $18.98 Hispeed USB2.0 24 in 1 card reader pen drive. Memory card reader/writer pen drive. USB 2.0 transfer rate up to 480 Mbps. No external power required. Fully plug play. Hot swappable. Lower power consumption |
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Free shipping 10pcs/lot,Google Android Robot USB 2.0 FLASH DRIVE pen drive usb stick 2gb 4gb 8gb 16gb usb thumb drive thumbdrive $84.21 Google Android Robot USB 2.0 FLASH DRIVE pen drive usb stick 2gb 4gb 8gb usb |
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EDGE Tech 4GB USB 2.0 Flash Drive plus Ink Pen $26.99 0.60" 1.41 oz 4 GB 4GB USB 2.0 Flash Drive plus Ink Pen 5.25" A convenient storage solution fusing a brilliant, executive-style 4GB USB 2.0 Flash Drive plus Ink Pen Easily transfer, save, and carry data, Secure twist-off cap unveils the USB flash drive, Store important presentations, documents, digital photos, music, videos, and more. DiskGO! EDGDM-216351-PE EDGE EDGE Tech Corporation External Flash Drive Lifetime USB 2.0 www.edgetechcorp.com |
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EDGE Tech 8GB USB 2.0 Flash Drive plus Ink Pen $39.99 0.60" 1.41 oz 5.25" 8 GB 8GB USB 2.0 Flash Drive plus Ink Pen A convenient storage solution fusing a brilliant, executive-style 8GB USB 2.0 Flash Drive plus Ink Pen, Easily transfer, save, and carry data, Secure twist-off cap unveils the USB flash drive, Store important presentations, documents, digital photos, music, videos, and more. DiskGO! EDGDM-222413-PE EDGE EDGE Tech Corporation External Flash Drive Lifetime USB 2.0 www.edgetechcorp.com |
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Happy Cartoon Doggie 1GB USB Pen Flash Drive $7.49 Description:Cartoon Pen Drive in happy doggie design which is cute and noveltyMaterials: Metal encased in two-piece heavy rubber cute doggie design moldDoggie Flash Drive operating System Compatibility: Windows 98/ME/2000/ XP / VistaCapacity: 1GBUSB: 2.0Doggie Pen Drive dimension: 50mm x 43mm x 8mm (H x W x D)Color: as picture showWeight: 50gOther Features:Integral molded hole for attachment to your favorite necklace or keychainMakes a good gift for people who like Flash Drive collectiblesPackage Contents:1 x 1GB Doggie Pen Drive1 x plastic box |
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FREE Shipping OEM 4GB 8GB 16GB USB Pen Drive with laser pointer, Flash Memory Disk Driver $9.99 3 in 1:USB Pen Drive + Laser Pointer + Ball Pen 1.Nice Gift/Premium 2.Cap-less switch design 3.Teaching,lectures,exploration |
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2GB USB2.0 Flash Memory Pen Stick Drive Storage $11.49 Features:New generic 2GB USB2.0 Flash Memory Pen Stick Drive Storage w/ HoleHigh storage capacity, Stores up to 2GB of Memory2GB Flash Pen: Plug and play, Easy to useNo need external power supplyUSB1.0/1.1/2.0 compliant2GB Flash Stick Drive with hole design, hang by a string for carrying ( string is not included )Small, Light, Moisture-proofWeight: 25gSize: 6.7 x 1.9 x 0.8cmSupport multiple operating systems: Windows 98SE, ME, 2000, XP, Vista.Package:1 X USB2.0 Drive Storage |
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Free shipping 10pcs/lot,2GB 4GB 8GB 16GB 32GB Jewel crystal Heart Lock Necklace USB flash pen drive heart flash drive thumbdrive $89.47 Free shipping 10pcs/lot,2GB 4GB 8GB USB Jewel crystal Heart Lock Necklace USB Flash Pen Drive heart flash drive thumbdrive usb |
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Duracell Capless DU-ZP-32G-CA-N3-R 32 GB USB 2.0 Flash Drive - Black, $81.46 32GB USB Pen Drive-Capless |
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Aas Ultra Analog - Virtual Analog Synthesizer Software $185 The Applied Acoustic Systems Ultra Analog Virtual Analog Synthesizer is a 32-voice polyphonic virtual analog synthesizer entirely based on physical modeling for outstanding sound quality. At the heart of Ultra Analog are the best alias-free oscillators in the industry, featuring standard wave shapes, hard sync, sub oscillators, and integrated pitch envelopes for impressive evolving and dynamic analog tone. 2 ballsy multimode filters with multiple drive and distortion options are then applied to give the sound its bold personality. Finally, 2 syncable comprehensive LFOs, 4 loopable velocity-sensitive ADSR envelopes generators, and a separate vibrato function provide carefully chosen modulation options.Make Music HappenThe superb preset library provides a fantastic journey through all the colors of the analog spectrum. Ultra Analog is highly efficient; just find the sound you want fast and tweak it to perfection with the integrated categorized browser and ergonomic interface. What's more, the browser enables complete freedom over the organization of your preset library; categorize by songs, styles, events, etc. Whether it's for day-to-day synth work, or particular sound design tasks, Ultra Analog will deliver the entire analog sonic range with every control at your fingertips wherever and whenever your creative outbursts demand it.Live in the Studio or Live on StageUltra Analog is packed with premium performance features, including keyboard modes, portamento, and legato functions. And to help you follow your groove, Ultra Analog is equipped with a complete set of MIDI features: an easy-to-use MIDI Learn function for user-defined MIDI maps, min/max parameter range settings, MIDI program change and automation. And for even more action, Ultra Analog provides a user-programmable pattern arpeggiator and high-quality master effects featuring chorus, delay, and reverb.32-voice polyphonyEntirely based on physical modelingTop-quality preset libraryReal time calculation of sound - no samples32-bit floating-point internal processingAudio bit-depth and sample rates up to 24-bit/192kHzIntegrated audio recorder to capture performance on the flyIntegrated browser and locate function for easy navigation and organization of presetsImport/Export functions for easy sharing of presetsUnlimited undo/redo capabilityStandalone operation - no host application requiredStandard plug-in formats supportFull audio and MIDI hardware supportSimultaneous operation of multiple MIDI portsMIDI automation and program change supportUser defined MIDI maps with MIDI LearnModule initialization and bypassHigh-quality integrated master effects: chorus, delay and reverbMIDI Clock, tap, and host tempo synchronizationDynamic voice allocation and CPU overhead protection |
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Wholesale Free Shipping Guaranteed Full Capacity Wooden Pen Thumbdrive USB Flash Drive Wholesale 10pcs/lot $66 Wooden ball pen USB drive; A good gift for your family and friends; Can imprint your personal logo; |
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Free shipping pen drive +U Disk 2GB/4GB/8GN/16GB best gift for your freinds 10years Warranty with Laser point $17.77 pen drive 1,Free shipping 2,LOGO free. 3,CE,FCC,ROHS complied 4,Storage:1GB.2GB.4GB.8GB.16GB.32GB.64GB |