Barcode scanners: Working and different types available

Barcode scanners: Working and different types available

Unlike the days when technology was less advanced, we no longer have to do everything manually today. There are a lot of gadgets and devices invented to automate manual work and save time. One of such inventions that have made everyone's life and work easily is barcode scanners. Whether we buy something from a store, go to a large event, travel, or visit a doctor, we see barcodes and barcode scanners everywhere.

With barcode scanners, companies can carry out their businesses easily and accurately. Barcode scanning systems enable companies to track a massive quantity of data, increasing production and efficiency. Not to mention, barcode scanners decrease human mistakes when compared to manual encoding.

When dealing with a big sales inventory, human encoding mistakes might result in a loss of thousands of rupees in earnings. These devices speed up and simplify the work as well as improve the accuracy of corporate transactions. It is a dependable sales processing solution that eliminates errors and staff training time, which allows businesses to make more money.

How do barcode scanners work?

This input gadget, also known as a POS scanner or a price scanner, reads and collects information from a barcode attached to the product. The barcode scanner machine comprises a scanner and a decoder, with a wired or wireless connection to a computer. The device also has a lens, a light source, and a light sensor that can convert optical impulses into electrical signals. The barcode reader scans and digitally converts printed barcodes using light beams. The device decodes the information and subsequently delivers it to a software application on the computer.

The main job of the decoder is to recognize the barcode symbols, convert bar and space information, and send the data to a computer in an understandable format. The computer puts the collected data into Excel or other databases using the decoder. That data may be entered into inventory records to monitor work-in-progress, receive and transfer files using special application software, or simply bill.

This gadget eliminates the need for manual data gathering, lowering the risk of human mistakes, and speeds up activities like asset management, point-of-sale transaction monitoring, and inventory tracking.

Types of barcode scanner machines:

There are five kinds of barcode readers: laser scanners, pen wands, CCD (charge-coupled device) scanners, slot scanners, and image scanners. However, it is essential to select the suitable barcode scanner machine for your business by examining your needs, the size of your organization, IT infrastructure, and so on.

  • Laser Scanner:

These scanners are available in two types: handheld or stationary, and do not require to be near the barcodes to read them. A laser scanner reads barcodes using mirrors and lenses and scans them from a distance of up to 24 inches. Additionally, other long-range variants can scan barcodes from a distance of up to 30 feet. The device is also capable of reading barcodes in any orientation. Laser scanners can scan at speeds of up to 500 scans per second.

  • Pen Wand:

This is the most basic yet most durable device, and the barcode scanner price is also reasonable. The barcode is scanned through a reciprocating mirror or rotating prism present in the device. Pen wands are smaller in size and do not have any moving components. The pen wands must remain in close contact with the barcode to read the data and should be held at a specific angle. It must also travel at a specific pace across the barcode.

  • CCD Scanner:

Typically, this sort of barcode reader is used in retail sales. It has a better and longer range than pen-type scanners and features a gun-like interface. To read the barcode, the device must be held close to it. The users generally obtain several readings to get accurate information and reduce mistakes. The drawback of utilizing this sort of barcode reader is that it can only read barcodes with a width that is the same as its face size.

  • Slot Scanner:

This machine is a stationary barcode scanner and one of the most preferred ones among other types of devices. The object to be scanned is dragged through the slot on the barcode reader device by hand. This sort of barcode scanner is typically used to scan the barcodes on swiped cards or identity cards.

  • Image Scanner:

This type of scanner is also known as a camera reader, which comes with a tiny camera that captures an image of the barcode. It features digital image processors that scan the barcodes and can read them from a distance of up to 9 inches.


Barcode scanners are by far one of the finest inventions of technology, which ease and automate billing, sales, inventory management, and other processes. If you are one of those looking to purchase a barcode scanner to smooth the operations of your business, visit The site has listed different kinds of barcode scanners from popular brands at exciting discounts.

Barcode Scanner: FAQs

Q.Which barcode scanner is best?

Some of the best barcode scanners available are:

Q. How does a barcode scanner work?

A. This is an input device that scans and converts printed barcodes using light beams. The data is subsequently decoded and transmitted to a computer. The barcode scanner uses a lens, a light source, and a light sensor to convert optical impulses into electrical signals that make up the system.

Q. What are the two types of barcodes?

A. 1D and 2D barcodes are the two common types available in the market.

Q. What is the difference between a barcode and a QR code?

A. The key difference between a barcode and a QR code is their physical size. Barcodes are usually read in a line, which means the amount of data that can be stored in that one stretch of lines is restricted. QR codes, however, provide a new dimension to the writing and scanning of information. These labels may be read both vertically and horizontally, rather than on a single line.