Tandem MOOC english

Safari is a graphical web browser developed by Apple, it is found on iPhones, iPad, and Macs.

A screencast is a digital video recording of your computer screen and usually includes audio narration. Screencasts are just one of many different types of instructional videos.

websites and applications that enable users to create and share content or to participate in social networking. Examples are Facebook, Instagram, Youtube, etc.

Spam is defined as irrelevant or unsolicited messages sent to a large number of Internet users, for illegitimate advertising, and other activities such as phishing, and spreading malware.