WHAT IS BARCODES AND RFID

RADIO-FREQUENCY IDENTIFICATION (RFID)

RFID is an acronym for “radio-frequency identification” and refers to a technology whereby digital data encoded in RFID tags or smart labels are captured by a reader via radio waves. RFID is similar to barcoding in that data from a tag or label are captured by a device that stores the data in a database. RFID, however, has several advantages over systems that use barcode asset tracking software. The most notable is that RFID tag data can be read outside the line-of-sight, whereas barcodes must be aligned with an optical scanner.

HOW DOES (RFID) WORK?

RFID belongs to a group of technologies referred to as Automatic Identification and Data Capture (AIDC). AIDC methods automatically identify objects, collect data about them, and enter those data directly into computer systems with little or no human intervention. RFID methods utilize radio waves to accomplish this. At a simple level, RFID systems consist of three components: an RFID tag or smart label, an RFID reader, and an antenna. RFID tags contain an integrated circuit and an antenna, which are used to transmit data to the RFID reader (also called an interrogator). The reader then converts the radio waves to a more usable form of data. Information collected from the tags is then transferred through a communications interface to a host computer system, where the data can be stored in a database and analyzed at a later time.

BARCODES

A barcode is a square or rectangular image consisting of a series of parallel black lines and white spaces of varying widths that can be read by a scanner. Barcodes are applied to products as a means of quick identification. They are used in retail stores as part of the purchase process, in warehouses to track inventory, and on invoices to assist in accounting, among many other uses. 
Use of barcodes has increased since the emergence of Online stores such as Amazon and Daraz that use barcodes to manage inventories efficiently and effectively.

Two Kinds of Barcodes

There are two general types of barcodes: 1-dimensional (1D) and 2-dimensional (2D).

1) 1D barcodes are a series of lines used to store text information, such as product type, size, and color. They appear in the top part of universal product codes (UPCs) used on product packaging, to help track packages through the U.S. Postal Service, as well as in ISBN numbers on the back of books.

2) 2D barcodes are more complex and can include more information than just text, such as the price, quantity, and even an image. For that reason, linear barcode scanners can’t read them, though smartphones and other image scanners will.