When we sent messages in chat apps like Whatsapp or Facebook Messenger, we often see a tick telling us something about the message's delivery status. While we have a broad idea of what these symbols mean, what exactly does this reflect from a technical standpoint? This is surprisingly complex!

= 0612 TV =
0612 TV, a sub-project of NERDfirst.net, is an educational YouTube channel. Started in 2008, we have now covered a wide range of topics, from areas such as Programming, Algorithms and Computing Theories, Computer Graphics, Photography, and Specialized Guides for using software such as FFMPEG, Deshaker, GIMP and more!

Enjoy your stay, and don't hesitate to drop me a comment or a personal message to my inbox =) If you like my work, don't forget to subscribe!

Like what you see? Buy me a coffee → http://www.nerdfirst.net/donate/

0612 TV Official Writeup: http://nerdfirst.net/0612tv
More about me: http://about.me/lcc0612
Official Twitter:   / 0612tv  

= NERDfirst =
NERDfirst is a project allowing me to go above and beyond YouTube videos into areas like app and game development. It will also contain the official 0612 TV blog and other resources.

Watch this space, and keep your eyes peeled on this channel for more updates! http://nerdfirst.net/

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Disclaimer: Please note that any information is provided on this channel in good faith, but I cannot guarantee 100% accuracy / correctness on all content. Contributors to this channel are not to be held responsible for any possible outcomes from your use of the information.