You may have heard of QR Codes. QR Codes are Quick Response codes which help people using mobile phones to fetch information quickly instead of typing them. This helps save time and effort for the visitor and helps you to give more information regarding your product and service. If you visit my website https://www.adeelsarfaraz.com you will see a QR code on the right. If you have a QR code scanner application installed on your mobile phone you can download my business vcard to your phone just by scanning the QR code on my website.
I have coded a script which will help you to generate similar QR codes to place on your website.