We are living the golden time of science. Science continuously created many wonderful things. Barcode is one of them. It’s the under Technology field. Today we learn about Barcode in Details. I will start write step by step. In this tutorial you can know The History of Barcode, How to Use ? BarCode Scneener, What is the Benefits ?
Types of barcodes ? Also How we can create barcode and “Free Online Barcode Generator: Make a Custom Barcode in Seconds”
Barcode is an visual, machine-readable overuse of data. Barcode usually describes something about the think that carries in this.Originally barcodes systematically represented data by varying the widths and spacings of parallel lines, and may be referred to as linear or one-dimensional (1D). Later two-dimensional (2D) codes were developed, using rectangles, dots, hexagons and other geometric patterns in two dimensions, usually called barcodes although they do not use bars as such.
In the first time Barcodes were scanned by special optical scanners called barcode readers or barcode screener. When software became available for barcode screener then it become possible to read images, such as smartphones with cameras.
Bernard Silver invention it’s in In 1948
Barcodes become a universal element of modern civilization, This helps track items and also reduces instances of shoplifting involving price tag swapping, although shoplifters can now print their own barcodes. Retail chain membership cards (issued mostly by grocery stores and specialty “big box” retail stores such as sporting equipment, office supply, or pet stores) use barcodes to uniquely identify consumers, allowing for customized marketing and greater understanding of individual consumer shopping patterns.
At the point of sale, shoppers can get product discounts or special marketing offers through the address or e-mail address provided at registration.
Example of a barcode on a patient identification wristband
They are widely used in the healthcare and hospital settings, ranging from patient identification (to access patient data, including medical history, drug allergies, etc.) to creating SOAP Notes with barcodes to medication management. They are also used to facilitate the separation and indexing of documents that have been imaged in batch scanning applications, track the organization of species in biology, and integrate with in-motion checkweighers to identify the item being weighed in a conveyor line for data collection.
Scanners (barcode readers)
The earliest, and still the cheapest, barcode scanners are built from a fixed light and a single photosensor that is manually “scrubbed” across the barcode. On the based of connection to the computer, barcode scanners can be classified into three categories
RS-232 is the older barcode scanner. It’s requires special programming for changing the input data to the application program.
“Keyboard interface scanners” connect to a computer using a PS/2 or AT keyboard–compatible adaptor cable. The data ending system is that when typed on the keyboard the barcode’s data is sent to the computer.
USB scanners very similar with the keyboard interface scanner, It’s very easy to install. You do not need custom code for transferring input data to the application program. On PCs running Windows the HID interface emulates the data merging action of a hardware “keyboard wedge”, and the scanner automatically behaves like an additional keyboard.
You can easily decode barcodes using your Google’s mobile Android built-in camera. Google’s mobile Android operating system uses both their own Google Goggles application or third party barcode scanners like Scan.
All Maemo operating system have a QR code reader. If you use Nokia’s Symbian operating system then it’s will be easy for you as Nokia’s Symbian operating system features a barcode scanner,
In the Apple iOS, a barcode reader is not natively included but more than fifty paid and free apps are available with both scanning capabilities and hard-linking to URI. With BlackBerry devices, the App World application can natively scan barcodes and load any recognized Web URLs on the device’s Web browser. Windows Phone 7.5 is able to scan barcodes through the Bing search app. However, these devices are not designed specifically for the capturing of barcodes. As a result, they do not decode nearly as quickly or accurately as a dedicated barcode scanner or portable data terminal.
In point-of-sale management, barcode systems can provide detailed up-to-date information on the business, accelerating decisions and with more confidence. For example:
- Fast-selling items can be identified quickly and automatically reordered.
- Slow-selling items can be identified, preventing inventory build-up.
- The effects of merchandising changes can be monitored, allowing fast-moving, more profitable items to occupy the best space.
- Historical data can be used to predict seasonal fluctuations very accurately.
- Items may be repriced on the shelf to reflect both sale prices and price increases.
- This technology also enables the profiling of individual consumers, typically through a voluntary registration of discount cards. While pitched as a benefit to the consumer, this practice is considered to be potentially dangerous by privacy advocates.
Besides sales and inventory tracking, barcodes are very useful in logistics and supply chain management.
- When a manufacturer packs a box for shipment, a Unique Identifying Number (UID) can be assigned to the box.
- A database can link the UID to relevant information about the box; such as order number, items packed, quantity packed, destination, etc.
- The information can be transmitted through a communication system such as Electronic Data Interchange (EDI) so the retailer has the information about a shipment before it arrives.
- Shipments that are sent to a Distribution Center (DC) are tracked before forwarding. When the shipment reaches its final destination, the UID gets scanned, so the store knows the shipment’s source, contents, and cost.
Barcode scanners are relatively low cost and extremely accurate compared to key-entry, with only about 1 substitution error in 15,000 to 36 trillion characters entered.
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