Barcodes are ubiquitous in our daily lives. They help streamline business operations, simplify product identification, and expedite checkout. But how do they work, and what are the different barcode symbologies types available? Here, we will explore the answers to these questions and provide an overview of today’s most common barcode symbologies.

What is Barcode Symbology?

Barcode symbology encodes information into a graphic pattern that a machine can read. These patterns consist of a series of bars and spaces that represent alphanumeric characters and symbols. It allows businesses to automate inventory management and pricing processes, reducing errors and improving efficiency. Different types of barcode symbologies exist, ranging from 1D to 2D barcodes, each with its own set of advantages and limitations.

Read More: The RFID Symbol Evolution: From Concept to Global Standard

How do Barcodes Work?

It needs to be interpreted and converted into useful data when a barcode is scanned. This process involves splitting the barcode symbol into individual elements the scanner can decode.

Barcodes can be printed on various surfaces, including labels, packaging, and products themselves. The scanner reads the barcode by shining a light on it and detecting the reflected light to determine the width of the lines and spaces. The scanner then converts this information into digital data that a computer or other system can use. Then, this data is translated into characters representing the encoded information, such as the product code, manufacturer, and price.

The accuracy of the barcode scanning process depends on the quality of the printed barcode, the scanner’s ability to read it, and the accuracy of the decoding software. Barcode symbology plays a crucial role in ensuring that the scanner can accurately read and interpret the barcode. Different symbologies have different rules for how the barcode symbol is encoded and how it should be decoded. These rules must be followed to ensure successful scanning and accurate data capture.

1D vs 2D Barcodes Symbology

Barcodes can be categorized into two types: 1D (one-dimensional) and 2D (two-dimensional). 1D barcode, we can also call it linear barcode. It mainly consists of a series of parallel lines of different widths and spaces. The data is encoded in the width of the lines and the spaces between them. They can store a limited amount of information, They can hold a limited amount of information, but these data are basically no more than 20 characters.

In contrast, a 2D barcode can store much more data. You can store up to several thousand characters in it. You can also use it to represent more complex types of data, such as images and web links. 2D barcodes represent data using a matrix of dots, squares, or other shapes. It can be read by specialized 2D barcode readers or smartphones with built-in cameras. While both types of barcodes have their uses, 2D barcodes offer greater flexibility and capacity for storing and transmitting data.

Common Barcode Symbology Types

Many Different Types of Barcode Symbologies
Many Different Types of Barcode Symbologies

There are many types of barcode symbologies, each with its own unique features and applications. Some of the most common types of barcode symbologies include Code 39, Codabar, and Interleaved 2 of 5. The selection of a particular symbology depends on factors such as:

  • The Data to be Encoded Type and Amount,
  • The Size of the Barcode,
  • You will Use the Type of Barcode Symbology Detector, Scanner, or Reader.
  • Barcode Symbology Identifier App
  • The Scanning Environment

For example, UPC codes are commonly used in retail environments to identify products and track inventory. QR codes are used for marketing and mobile applications.


Here’s a table describing the Aztec barcode symbology:

Barcode symbolaztec barcode symbology
Type2D Matrix barcode
EncodingAlphanumeric and/or binary data
Data capacityUp to 3,000 characters or 3,500 digits or 1,700 bytes
Size rangeFrom 15×15 modules to 151×151 modules
Error correctionUp to 23% damage can be corrected with Reed-Solomon code
Reader compatibilityAztec Code readers or scanners
ApplicationsTicketing, transportation, inventory, and asset tracking

Code 39

Here’s a table describing the Code 39 barcode symbology:

Barcode NameCode 39
Other NamesUSD-3, 3 of 9 Code, Alpha39
Barcode Symbologycode 39 barcode symbology
Linear 1D Barcode
Character SetCan encode 43 characters: A-Z, 0-9, space, and symbols (-, ., $, /, +, %)
Barcode LengthVariable length, limited by the available space on the label and the scanner’s ability to read it
Check DigitOptional, but can be used to ensure accuracy
ApplicationUsed in a wide range of applications, such as inventory management, asset tracking, and identification
AdvantagesHigh density of data can be encoded, easy to print and read, widely used
DisadvantagesNot suitable for very small labels, limited character set, requires start and stop characters
Industry StandardsCompliant with international standards, such as ISO/IEC 16388 and ANSI MH10.8M-1983

Code 93

Here’s a table describing the Code 93 barcode symbology:

FeatureCode 93
Barcode Symbologycode 93 barcode symbology
Code TypeVariable length, discrete, alphanumeric
Code LengthVariable length
Character Set26 uppercase letters, 10 numbers, and 7 special characters (including space, dollar sign, percent sign, plus sign, period, slash, and hyphen)
Check DigitRequired, modulo 47 check digit
DensityCan be printed at high density
ApplicationsShipping labels, identification, inventory management, and asset tracking
AdvantagesCan encode a large amount of data in a compact space
DisadvantagesNot as widely used as other barcode types, such as Code 128
Example Use CaseEncoding product information on shipping labels for a warehouse
StandardizationAIM International

Code 128

Here’s a table describing the Code 128 barcode symbology:

NameCode 128
Barcode Symbologycode 128 barcode symbology
Other NamesANSI/AIM Code 128, Uniform Symbology Specification Code 128, Code 128A, Code 128B, Code 128C
Barcode TypeLinear (1D)
Data TypeAlphanumeric
Maximum Data CharactersVariable (limited by barcode length and barcode scanner capability)
SymbologyBars and Spaces
Code StructureConsists of a start character, data characters, a check character, and a stop character
Encoding MethodVariable-width bars and spaces
Error CorrectionCheck character(s) for data integrity
DensityHigh-density (up to 30 characters per inch)
AdvantagesHigh data density, can encode all ASCII characters, supports multiple character sets
DisadvantagesRequires a barcode scanner for data reading, not suitable for small products
Sample Barcode Symbol


Here’s a table describing the Codabar barcode symbology:

Other NamesNW-7, Monarch, Codeabar
Barcode TypeLinear 1D
Barcode Symbologycodabar barcode symbology
Characters EncodedNumeric digits (0-9), dash (-), colon (:), dollar sign ($), slash (/), period (.), plus sign (+), and A, B, C, D
Check DigitOptional
AdvantagesCan be printed in various sizes and densities, easy to read and decode
DisadvantagesLimited character set, not widely used
ApplicationsUsed in libraries, blood banks, and some retail and manufacturing industries
Encoding MethodEach character is represented by a series of four bars and three spaces, with the start and stop characters represented by unique bar patterns
ExampleA typical Codabar barcode may look like this: A1234B

Data Matrix

NameData Matrix
Barcode Symbologydata matrix barcode symbology
PurposeTo encode information in a two-dimensional symbol that can be read quickly and accurately using a scanner
Format2D barcode
EncodingUses a matrix of black and white cells to represent data, with different patterns for different characters
CapacityCan encode up to 2,335 alphanumeric characters, or up to 3,116 numeric characters
SizeCan be as small as 8×8 cells, or as large as 144×144 cells
Error correctionUses Reed-Solomon error correction to ensure data integrity and readability even if parts of the symbol are damaged
ApplicationsCommonly used in product labeling, inventory management, shipping and logistics, and document tracking
AdvantagesHigh data density, small size, and robustness against damage or distortion
DisadvantagesRequires specialized equipment (a scanner) to read, and may not be as widely recognized as other barcodes

Here’s a table describing the Data Matrix barcode symbology:

EAN-8 (European Article Number 8)

Here’s a table describing the EAN-8 barcode symbology:

NameEAN-8 (European Article Number 8)
Barcode typeLinear, one-dimensional barcode
Barcode Symbologyean 8 barcode symbology
EncodingEach digit is represented by a pattern of two different widths of bars and spaces
CharactersConsists of 8 digits (can encode 7 digits plus a check digit)
Check digitCalculated using a mod-10 algorithm
ApplicationMainly used for retail point-of-sale applications
SizeTotal width is 37.3 mm (1.469 inches), height is 25.93 mm (1.020 inches)
Quiet zoneA clear space is required on either side of the barcode, which should be at least 9.5 mm (0.374 inches) wide
ReadingCan be read by a barcode scanner, which decodes the pattern of bars and spaces into the corresponding digits
LimitationsCan only encode numeric digits (0-9)
VariantsUPC-E (Universal Product Code-E) is a closely related variant that encodes 12-digit UPC codes into 8 digits using a similar encoding scheme.

EAN-13 (European Article Number 13)

Here’s a table describing the EAN-13 barcode symbology:

Barcode Symbologyean 13 barcode symbology
TypeLinear 1D barcode
Number of digits13
Character set0-9
SizeThe minimum size of the EAN-13 barcode symbol is 80% of the recommended size, which is 38mm x 25mm (1.5in x 1in) with a minimum print resolution of 203 dpi (dots per inch). The maximum size is not specified but may depend on the scanning capability of the barcode reader.
Check digitCalculated using a modulo 10 algorithm
StructureThe barcode consists of 3 parts: the left-hand side (LHS), the right-hand side (RHS), and the centre guard bars. The LHS and RHS are each divided into 6 digits, with the first digit serving as a “number system digit” and the next 5 digits being the product code. The centre guard bars separate the LHS and RHS and consist of 5 bars (2 thin and 3 thick).
ApplicationsWidely used in retail, particularly for scanning products at point-of-sale terminals.
AdvantagesHigh data density, international compatibility, and easy readability by barcode scanners.
DisadvantagesLimited capacity, inability to encode letters or other characters, and vulnerability to damage or tampering.

Interleaved 2 of 5

Here’s a table describing the Interleaved 2 of 5 barcode symbology:

Barcode SymbolDescription
ITFInterleaved 2 of 5
Barcode Symbologyinterleaved 2 of 5 barcode symbology
Numeric-only barcode with an even number of digits
StructureEach digit is represented by 5 bars, 2 of which are wide, and 3 are narrow. The digits are interleaved, with the first digit using the bars in the odd-numbered positions, and the second digit using the bars in the even-numbered positions.
Check DigitOptional check digit calculation, used to ensure the accuracy of the barcode data
DensityCan be printed at high density, resulting in a smaller barcode size
UsageUsed primarily in inventory and warehouse applications
Encoding MethodsNumeric data is encoded using bars of varying width and spacing
DecodingBarcode scanners use light sensors to detect the bars and spaces, translating them into the encoded data
AdvantagesHigh-density printing capabilities, relatively low error rate, can encode large amounts of data in a small space
DisadvantagesLimited to numeric data only, not widely used in consumer-facing applications, can be difficult to read by some scanners if not printed or scanned correctly

ISBN (International Standard Book Number)

Here’s a table describing the ISBN barcode symbology:

DefinitionA unique identifier assigned to a book or other monographic publication.
PurposeTo provide a standard way of identifying books, facilitating their distribution and sale in the global marketplace.
FormatConsists of 13 digits, separated into five elements: prefix element, registration group element, registrant element, publication element, and check digit.
Barcode symbolisbn barcode symbology
The barcode symbol for ISBN is the EAN-13, which consists of 13 digits encoded into bars and spaces, with a barcode scanner used to read the information.
Prefix elementThe prefix element is either 978 or 979, indicating that the number is an ISBN.
Registration group elementThe registration group element identifies the country, geographical region, or language area in which the registrant is located.
Registrant elementThe registrant element identifies the publisher or other entity responsible for the publication.
Publication elementThe publication element identifies the specific edition, format, and version of the publication.
Check digitThe check digit is calculated using a mathematical formula that verifies the accuracy of the other digits in the ISBN.
ExampleISBN 978-3-16-148410-0, where the prefix element is 978, the registration group element is 3, the registrant element is 16, the publication element is 148410, and the check digit is 0.

ISSN (International Standard Serial Number)

Here’s a table describing the ISSN barcode symbology:

ISSNInternational Standard Serial Number
PurposeA unique identifier for serial publications (e.g., magazines, journals, newspapers, etc.)
Barcode Symbolissn barcode symbology
EAN-13 or UPC-A barcode
Format8 digits (divided into two groups of four, separated by a hyphen) e.g., 1234-5678
RegistrationIssued by the International ISSN Centre, which is coordinated by the ISSN International Centre located in Paris, France
UsageUsed by libraries, publishers, and others in the publishing industry for identification, cataloging, and interlibrary loan purposes
BenefitsHelps to streamline the acquisition and management of serial publications, improves search and retrieval of information, and facilitates international cooperation in the exchange of serial publications.
LimitationsISSN does not provide information about the contents or quality of the publication, nor does it guarantee copyright status or ownership.


Here’s a table describing the MaxiCode barcode symbology:

Barcode Symbolmaxicode barcode symbology
2D Matrix code
StructureConsists of 3 concentric circles, containing hexagonal elements arranged in a unique bullseye pattern
CapacityCan encode up to 93 characters of data
Error CorrectionUtilizes Reed-Solomon error correction to ensure accuracy
UsageTypically used for high-speed, automated sorting and tracking of packages and parcels in the shipping industry
CompatibilityCompatible with a variety of scanning devices, including both handheld and fixed-position scanners
AdvantagesCan store a large amount of information in a relatively small space, highly accurate and reliable, can be easily scanned from any angle
DisadvantagesNot widely used outside of the shipping industry, may not be as recognizable to consumers as more common barcodes like UPC or QR codes

PDF417 (Portable Data File 417)

Here’s a table describing the PDF417 barcode symbology:

Full NamePortable Data File 417
Barcode Symbolpdf417 barcode symbology
TypeTwo-dimensional barcode
EncodingVariable-length, high-density symbology
CapacityUp to 1,850 ASCII characters or 2,710 numeric digits
Error CorrectionLevels of error correction from 0 to 8
OrientationCan be read in any direction, 360-degree rotation
ApplicationsUsed in logistics, transportation, ticketing, and identification
AdvantagesHigh data density, error correction, and flexibility
DisadvantagesRequires a specialized reader, not suitable for small displays or low resolution printing
StandardsISO/IEC 15438:2006 standard

QR Code (Quick Response Code)

Here’s a table describing the QR Code barcode symbology:

QR CodeA two-dimensional barcode that can be scanned using a smartphone or QR scanner.
Barcode Symbolqr code barcode symbology
PurposeTo store and quickly retrieve information, such as website URLs, contact information, or product details.
StructureQR Codes consist of black and white squares arranged in a square grid on a white background.
EncodingQR Codes can encode a variety of data types, including numeric, alphanumeric, and binary data.
CapacityThe amount of data that can be stored in a QR Code depends on its size and the type of data being encoded. The maximum capacity is 7,089 numeric characters or 4,296 alphanumeric characters.
Error CorrectionQR Codes include error correction codes that allow them to be partially damaged and still be read correctly.
ApplicationsQR Codes are used in a variety of industries, including advertising, marketing, ticketing, and inventory management.
SecurityQR Codes can be used to securely transmit information, such as passwords or payment information, by encrypting the data before encoding it in the code.
AdvantagesQR Codes are easy to generate and use, cost-effective, and can be scanned quickly using a smartphone camera.
DisadvantagesQR Codes require a compatible scanner or smartphone app, and may not be widely adopted in some regions or industries.

SGQR (Singapore Quick Response)

Here’s a table describing the SGQR barcode symbology:

NameSGQR (Singapore Quick Response)
PurposeA national QR code standard for e-payments in Singapore, developed by the Monetary Authority of Singapore (MAS)
Barcode Symbolsgqr barcode symbology
The SGQR symbol is a square barcode that resembles a QR code, but with a unique design that incorporates the SGQR logo and a hexagonal grid. It can be scanned by most mobile phones with a camera and QR code reader app.
AcceptanceSGQR is accepted at all merchants who display the SGQR logo, including small and micro businesses, food stalls, and hawker centres.
Payment MethodsSGQR supports multiple payment methods, including PayNow, NETS, credit and debit cards, and e-wallets such as GrabPay and Singtel Dash.
Transaction LimitThe transaction limit for SGQR payments depends on the payment method used and the merchant’s individual limits. For example, PayNow transactions are capped at SGD 5,000 per transaction, while credit and debit cards may have higher limits depending on the card issuer.
SecuritySGQR is designed with multiple layers of security to protect against fraud and ensure the privacy of users’ financial information. These include encryption, tokenization, and real-time transaction monitoring.
AdvantagesSGQR is a convenient, fast, and secure way to make e-payments in Singapore, with no need for cash or physical cards. It also promotes interoperability and competition among different payment providers, giving consumers more choice and merchants more flexibility.
AvailabilitySGQR is available to all Singaporean businesses and consumers, and is supported by most major banks, payment networks, and e-wallet providers.

UPC-A (Universal Product Code version A)

Here’s a table describing the UPC-A barcode symbology:

Format12-digit numeric barcode
Barcode Symbolupc a barcode symbology
Digits1 digit for number system, 5 digits for manufacturer code, 5 digits for product code, and 1 check digit
EncodingEach digit is represented by 2 bars and 2 spaces, with the exception of the start and stop characters which have 3 bars and 3 spaces.
Bar heightThe height of the bars can be varied between 0.33 inches to 0.5 inches.
Symbol widthThe width of the symbol is dependent on the number of digits being encoded, but typically ranges from 1.02 inches to 1.46 inches.
SymbologyUPC-A uses the continuous barcode symbology, where each character is represented by a series of bars and spaces that are read from left to right.
ApplicationUPC-A is commonly used for identifying products in retail environments and is used globally.
Check digitThe check digit is used to verify that the barcode has been read or entered correctly. It is calculated using a formula that takes into account all 11 preceding digits.
CompatibilityUPC-A barcodes can be read by most barcode scanners and can be printed on various surfaces such as paper, plastic, and metal.
LimitationsUPC-A is limited to encoding only numbers and cannot encode letters or other characters. It also has limited capacity, which means that it can only encode 12 digits of information.

UPC-E (Universal Product Code version E)

Here’s a table describing the UPC-E barcode symbology:

Full NameUniversal Product Code version E
Barcode Symbolupc e barcode symbology
TypeLinear barcode
Data RangeNumeric only, 6 digits (0-9)
Check DigitYes
EncodingEncodes 6 digits of data into a compact, 6-digit barcode
SizeSmaller than UPC-A, with a minimum width of 1.02 inches (2.59 cm)
UsesUsed for small packages and products with limited space for labeling
StructureStarts with a “zero suppression” digit, followed by 5 data digits
Checksum FormulaThe check digit is calculated using a modified version of the UPC-A formula
DecodingThe “zero suppression” digit is expanded to its full value, and the remaining digits are read as usual
CompatibilityCan be read by any scanner that can read UPC-A barcodes
AdvantagesTakes up less space than UPC-A, allowing for smaller product packaging
DisadvantagesOnly encodes 6 digits of data, which may be insufficient for some products

Which Barcode Symbology Detectors can I Use?

Barcode symbology detectors are widely available, from handheld devices to mobile apps. They can read various types of barcodes, including 1D and 2D codes. Popular options include laser scanners, CCD (charge-coupled device) scanners, and smartphone apps that use the camera to scan barcodes. These detectors use different techniques to interpret the barcode, such as analyzing the reflected light or capturing an image for digital processing.

Here is a sample table about computer-based barcode symbology detector types:

Scanner TypeDescriptionExamplesAdvantagesDisadvantages
CCD (Charge-Coupled Device)Uses an array of sensors to capture reflected lightMotorola LS2208, Honeywell Eclipse 5145Affordable, durable, reads 1D barcodes accurately at close rangeLimited range, unable to read poorly printed or damaged barcodes
LaserUses a laser beam to scan the barcodeSymbol LS2208, Honeywell Voyager 1202gHigh accuracy, reads 1D barcodes at longer range, good for industrial settingsCannot read 2D barcodes, expensive, requires proper aiming
Linear ImagerUses LED lights to capture the imageHoneywell Xenon 1900, Datalogic Gryphon I GD4400Reads damaged or poorly printed barcodes, more durable than CCD scannersLimited range, slower scanning speed compared to laser scanners
2D ImagerCaptures both 1D and 2D barcodes using a camera-like image sensorMotorola DS6707, Honeywell Xenon 1902Reads damaged or poorly printed barcodes, able to capture images and signatures, reads barcodes from smartphonesMore expensive than 1D scanners, may require software integration
OmnidirectionalReads barcodes from any angle, making it ideal for retail settingsHoneywell QuantumT 3580, Motorola MS954High scanning speed, can read multiple barcodes at once, easy to useExpensive, requires precise positioning of the barcode
Hands-FreeAutomatically scans barcodes as they pass through a scanning areaHoneywell Solaris 7980g, Datalogic Magellan 9300iHigh scanning speed, no need for manual operation, can read multiple barcodes at onceExpensive, requires proper positioning of the barcode
Note: This is just a sample table, and there are many different types and models of computer-based barcode symbology detector available on the market.

What Barcode Symbology Identifier App are Available?

There are many barcode symbology identifier apps available for smartphones and other mobile devices. These apps allow users to use it to scan barcodes and retrieve encoded data. Some of the most popular barcode scanning apps include Barcode & QR Code Reader and RedLaser. These apps use the camera on the smartphone or tablet to scan the barcode and decode the information. These barcode symbology detectors can also decode common barcodes such as UPC and EAN codes. Many apps can also decode 2D barcodes, such as QR codes and Data Matrix codes. Some barcode identifier apps also provide additional features, such as creating and sharing barcodes.

Most barcode scanning apps are available for free or for a nominal fee. You can be downloaded it from app stores such as Google Play or the Apple App Store.

Here is a sample table about App-Based barcode symbology identifier detector types:

App NameCompatible DevicesPriceFeatures
Scandit Barcode ScannerAndroid, iOSFree (with limitations) / PaidScans barcodes and QR codes, supports augmented reality, optimized for high-speed scanning
Barcode & QR Code ReaderAndroid, iOSFreeScans all common barcode types, supports flashlight for low-light scanning, saves scan history
QR Code Reader by ScanAndroid, iOSFreeScans barcodes and QR codes, supports flashlight for low-light scanning, allows users to create and share QR codes
NeoReader QR & Barcode ScannerAndroid, iOSFreeScans barcodes and QR codes, supports flashlight for low-light scanning, allows users to create custom QR codes
QRbot: QR & barcode readerAndroid, iOSFree (with ads) / PaidScans all common barcode types, supports flashlight for low-light scanning, allows users to create and share QR codes, can scan from saved images
Barcode Scanner ProAndroidPaidScans all common barcode types, supports flashlight for low-light scanning, saves scan history, no ads
Note: There are many other app-based barcode symbology detector options available, and prices and features may vary.

Types of Software Used for Barcode Symbology Identifier Scanners

Here’s a table summarizing some common types of software used for barcode symbology identifier scanners:

Type of SoftwareDescription
FirmwareThe software that’s embedded directly into the barcode scanner hardware. This software controls the basic functionality of the scanner, such as how it reads and decodes barcodes. Firmware is usually specific to the make and model of the scanner.
MiddlewareMiddleware is software that acts as a bridge between different applications or systems. In the context of barcode scanning, middleware may integrate barcode data into existing software systems, such as a warehouse management system or an ERP (enterprise resource planning) system.
Data Collection SoftwareThis type of software is used to collect and analyze data from barcode scanners. You can use it to track inventory levels, monitor sales trends, or identify product defects. Data collection software often includes tools for generating reports and visualizations based on the collected data.
Mobile Application Development SoftwareDevelopers can use these tools to create custom barcode-scanning applications for mobile devices. This software allows developers to specify how the barcode scanner should behave (for example, which types of barcodes it should be able to read) and provides libraries of code to simplify the development process.
Barcode Reader SoftwareThis software runs on a computer or mobile device and communicates with the scanner hardware to read and decode barcodes. Barcode reader software can be standalone or integrated into a larger application (such as a point-of-sale system or inventory management software).
Barcode Label Design SoftwareThis software designs and prints barcode labels that a barcode scanner can scan. It typically includes tools for creating and formatting barcode symbols and options for specifying the type of barcode and other settings.
Mobile Device Management (MDM) SoftwareThis software manages and secures mobile devices (such as smartphones or tablets) used for barcode scanning. MDM software allows IT administrators to remotely configure and monitor devices, ensuring they run the correct barcode reader software and meet security requirements.
Inventory Management SoftwareThis software type tracks and manages inventory in a warehouse or retail setting. It often includes barcode scanner integration, allowing users to scan items as they’re received, shipped, or moved within the facility.
Point-of-Sale (POS) SoftwarePOS software is used to manage sales transactions in a retail or restaurant setting. Barcode scanner integration allows cashiers to scan items and process payments more efficiently and quickly.
OCR (Optical Character Recognition) SoftwareSome barcode scanners are also capable of reading text, such as product numbers or serial numbers, in addition to barcodes. OCR software is used to recognize and interpret this text data, allowing it to be used in inventory management or other applications.
Note: This is not an exhaustive barcode symbology identifier scanners software list, and there may be other types of software

More About Barcode Symbology

  1. What is Standard Barcode Symbology Code?

    The most widely used standard barcode code is the UPC-A, used for retail products in North America and many other countries. It consists of a 12-digit numeric code and a series of bars and spaces that represent the code. The first 6 digits of the code represent the manufacturer, and the next 5 digits represent the product. The final digit is a check digit used for error detection.

  2. What is the Smallest Barcode Symbology?

    The smallest barcode symbology is the Micro QR Code, which can hold up to 35 numeric or 21 alphanumeric characters. It is a type of 2D barcode used for applications where space is limited. People usually use it for small electronic components or medical devices. It measures just 11mm x 11mm. Despite its small size, it still maintains high data integrity and can be read by most barcode scanners.

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