QR code

A QR code is a very unique pattern made of black and white areas.it containes a website or link when you go on your camera on a smartphone you can read the QRS code.people use QRS codes to promote businesses.there also used as coupons at some participating stores.

Podcast

A podcast is a audio file that is available for people to download.its also something that people can subscribe too.anyone can create a podcast.in a podcast you can speak about anything such as movies music and life.A podcast can be use in people blogs as an welcoming voice note.People use podcast for various types of entertainment.