Group items tagged

Voice over Internet Protocol (VoIP, Voice over IP) is a general term for a family of methodologies, communication protocols, and transmission technologies for delivery of voice communications and multimedia sessions over Internet Protocol (IP) networks, such as the Internet. Other terms frequently encountered and synonymous with VoIP are IP telephony, Internet telephony, voice over broadband (VoBB), broadband telephony, and broadband phone. Internet telephony refers to communications services — voice, facsimile, and/or voice-messaging applications — that are transported via the Internet, rather than the public switched telephone network (PSTN). The basic steps involved in originating an Internet telephone call are conversion of the analog voice signal to digital format and compression/translation of the signal into Internet protocol (IP) packets for transmission over the Internet; the process is reversed at the receiving end.[1] VoIP systems employ session control protocols to control the set-up and tear-down of calls as well as audio codecs which encode speech allowing transmission over an IP network as digital audio via an audio stream. Codec use is varied between different implementations of VoIP (and often a range of codecs are used); some implementations rely on narrowband and compressed speech, while others support high fidelity stereo codecs.

Napster was an online music peer-to-peer file sharing service created by Shawn Fanning while he was attending Northeastern University in Boston. The service operated between June 1999 and July 2001.[1] Its technology allowed people to easily share their MP3 files with other participants, bypassing the established market for such songs and thus leading to massive copyright violations of music and film media as well as other intellectual property. Although the original service was shut down by court order, it paved the way for decentralized peer-to-peer file distribution programs, which have been much harder to control. The service was named Napster after Fanning's hairstyle-based nickname. Napster's brand and logo were purchased after the company closed its doors and continue to be used by a pay service.

Kevin Kelly is Senior Maverick at Wired magazine. He co-founded Wired in 1993, and served as its Executive Editor from its inception until 1999. He is currently completing a book for Viking/Penguin publishers called "What Technology Wants," due out in the Fall 2010. He is also editor and publisher of the Cool Tools website, which gets half a million unique visitors per month. From 1984-1990 Kelly was publisher and editor of the Whole Earth Review, a journal of unorthodox technical news. He co-founded the ongoing Hackers' Conference, and was involved with the launch of the WELL, a pioneering online service started in 1985. He authored the best-selling New Rules for the New Economy and the classic book on decentralized eme

Sitting in pairs, students poke at their iPads waiting for class to begin

digitally records her lessons with a tablet computer as a virtual blackboard, then uploads them to iTunes and assigns them as homework