Enhanced Data rates for GSM Evolution (EDGE) (also known as Enhanced GPRS (EGPRS), or IMT Single Carrier (IMT-SC), or Enhanced Data rates for Global Evolution) is a digital mobile phone technology that allows improved data transmission rates as a backward-compatible extension of GSM. EDGE is considered a 3G radio technology and is part of ITU’s 3G definition. EDGE was deployed on GSM networks beginning in 2003 initially by Cingular (now AT&T) in the United States.
EDGE is standardized by 3GPP as part of the GSM family.
Through the introduction of sophisticated methods of coding and transmitting data, EDGE delivers higher bit-rates per radio channel, resulting in a threefold increase in capacity and performance compared with an ordinary GSM/GPRS connection.
EDGE can be used for any packet switched application, such as an Internet connection.
Evolved EDGE continues in Release 7 of the 3GPP standard providing reduced latency and more than doubled performance e.g. to complement High-Speed Packet Access (HSPA). Peak bit-rates of up to 1Mbit/s and typical bit-rates of 400kbit/s can be expected.
The Internet Protocol (IP) is the principal communications protocol used for relaying datagrams (packets) across an internetwork using the Internet Protocol Suite. Responsible for routing packets across network boundaries, it is the primary protocol that establishes the Internet.
IP is the primary protocol in the Internet Layer of the Internet Protocol Suite and has the task of delivering datagrams from the source host to the destination host solely based on their addresses. For this purpose, IP defines addressing methods and structures for datagram encapsulation.
Historically, IP was the connectionless datagram service in the original Transmission Control Program introduced by Vint Cerf and Bob Kahn in 1974, the other being the connection-oriented Transmission Control Protocol (TCP). The Internet Protocol Suite is therefore often referred to as TCP/IP.
The first major version of IP, now referred to as Internet Protocol Version 4 (IPv4) is the dominant protocol of the Internet, although the successor, Internet Protocol Version 6 (IPv6) is in active, growing deployment worldwide.
Apple Inc. (NASDAQ: AAPL; previously Apple Computer, Inc.) is an American multinational corporation that designs and markets consumer electronics, computer software, and personal computers. The company’s best-known hardware products include the Macintosh line of computers, the iPod, the iPhone and the iPad. Apple software includes the Mac OS X operating system; the iTunes media browser; the iLife suite of multimedia and creativity software; the iWork suite of productivity software; Aperture, a professional photography package; Final Cut Studio, a suite of professional audio and film-industry software products; Logic Studio, a suite of music production tools; and iOS, a mobile operating system. As of August 2010, the company operates 301 retail stores in ten countries, and an online store where hardware and software products are sold.
Established on April 1, 1976 in Cupertino, California, and incorporated January 3, 1977 the company was previously named Apple Computer, Inc., for its first 30 years, but removed the word “Computer” on January 9, 2007 to reflect the company’s ongoing expansion into the consumer electronics market in addition to its traditional focus on personal computers.As of September 25, 2010, Apple had 46,600 full time employees and 2,800 temporary full time employees worldwide and had worldwide annual sales of $ 65.23 billion
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