Bar codes & QR codes

cg_qr_code

Technology has come a long way in improving communications between people & machines. While earlier we used to convey information through the written word, now a lot more information can be conveyed in a fraction of that space through encoding the content.

Bar codes & QR codes let us transfer information visually by printing or displaying it in a coded format and making it available to be scanned and received. While Bar codes are mostly used in retail & industrial use scenarios, QR codes are mostly used in communications with individuals.

See also: Create Your Own QR Codes

To read bar / QR codes all you need is an app for your smartphone. We discuss apps for the Android and iOS (iPhone/iPad) below.

Bar & QR code reader for Android

barcode QR code scanner reader  for android

A popular scanner / reader for Android smartphones is the Barcode Scanner. This is a very simple to use app which also plugs in to other apps for using scanned information.

Follow these steps once you have installed the Barcode Scanner app:

  1. Launch the app.The app will launch in scanning mode.
  2. Point the smartphone camera at the code at the top of this article.

The code will then be scanned & read, after which you will be shown options to use the scanned information.

Bar & QR code reader for iOS

scan barcode qr code scanner reader ios iphone ipad

Scan is one of the top apps for reading Bar / QR codes on iOS. This is a quick & simple app to use.

Follow these steps once you have installed the Scan app:

  1. Launch the app. The app will launch in scanning mode.
  2. Point the smartphone camera at the code at the top of this article.

The code will then be scanned & read, after which you will be shown options to use the scanned information.

[Image for Scan courtesy QR Code City LLC / iTunes]

 

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