Barcode
Barcode
A Barcode (pronounced: /ˈbɑːrkoʊd/) is a method of representing data in a visual, machine-readable form. Originating from the Greek words "baros" meaning weight, and "code", which is a system of symbols used to represent secret meaning, the term "barcode" was first coined in the late 20th century.
Barcodes are used extensively in healthcare for patient identification, tracking medical equipment, and ensuring accurate medication dispensing. They are also used in other industries such as retail and logistics.
Types of Barcodes
There are two main types of barcodes: linear or 1D (one-dimensional) barcodes and 2D (two-dimensional) barcodes.
- Linear or 1D Barcodes - These are the traditional, "classic" barcodes that are made up of lines and spaces of various widths that create specific patterns.
- 2D Barcodes - These barcodes are more complex and can represent more data than linear barcodes. They use squares, dots, hexagons, and other geometric patterns.
Usage in Healthcare
In healthcare, barcodes can be used in various ways:
- Patient Identification - Barcodes can be used on patient wristbands to ensure that the right patient receives the right care.
- Medical Equipment Tracking - Barcodes can be used to track medical equipment and supplies, reducing the risk of loss or theft.
- Medication Dispensing - Barcodes on medication packages can help ensure that the right medication is given to the right patient at the right time.
Related Terms
- QR Code - A type of 2D barcode that is widely used for its ability to hold a lot of information.
- RFID - Radio Frequency Identification, a technology similar to barcodes but can be read wirelessly.
- UPC - Universal Product Code, a specific type of barcode used widely in retail.
External links
- Medical encyclopedia article on Barcode
- Wikipedia's article - Barcode
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