The printing press is a mechanical method designed to reproduce texts and images on paper, cloth or other materials.
It was developed by Alfred Vail while collaborating with Samuel Morse in the invention of the electric telegraph
Theodor Maiman invents the operable laser, introduced by Digital Equipment Corporation
Radio (understood as radio or broadcast, terms not strictly synonymous) 1 is a medium of communication that is based on the sending of audio signals through radio waves.
CompuServe was a US communications company whose full name was CompuServe Information Services, or CIS. It was the first commercial provider of telematic services in the United States.
A radio telescope captures radio waves emitted by radio sources, usually through a large satellite dish (dish), or a set of them, unlike an ordinary telescope, which captures images in visible light.
Television is a system for the transmission and reception of images and sound that simulate movement, remotely using a mechanism of diffusion.
A satellite is an ingenious, sent in a space shuttle, that stays in orbit around bodies of the space.
Electronic mail (email or e-mail) is a method of exchanging messages between people using electronics.
The Advanced Research Projects Agency Network (ARPANET) was an early packet switching network and the first network to implement the protocol suite TCP/IP. Both technologies became the technical foundation of the Internet
A mobile or cellular phone is a portable telephone that can make and receive calls through a radio frequency carrier while the user is moving within a telephone service area.
Internet Relay Chat (IRC) is an application layer protocol that facilitates communication in the form of text.
Napster was the name given to two music-focused online services.
is a free online encyclopedia with the aim to allow anyone to edit articles
Blogger is a blog-publishing service that allows multi-user blogs with time-stamped entries
Myspace is a social networking website offering an interactive, user-submitted network of friends, personal profiles, blogs, groups, photos, music, and videos.
Facebook is an American for-profit corporation and an online social media and social networking service based in Menlo Park, California
Flickr is an image- and video-hosting website and web services suite that was created by Ludicorp in 2004 and acquired by Yahoo on 20 March 2005.
YouTube is an American video-sharing website headquartered in San Bruno, California.
Twitter is a social networking and microblogging service. Users use mobile phones or computers to send and to read messages, called "tweets".
