Dell, Apple, Microsoft And Intel..

DELL
Dell, Inc. (NASDAQ: Dell, HKEX: 4331) is an American multinational information technology corporation based in Round Rock, Texas, United States, that develops, sells and supports computers and related products and services. Bearing the name of its founder, Michael Dell, the company is one of the largest technological corporations in the world, employing more than 103,300 people worldwide Dell is listed at number 41 in the Fortune 500 list
Dell has grown by both organic and inorganic means since its inception—notable mergers and acquisitions including Alienware (2006) and Perot Systems (2009). As of 2009, the company sold personal computers, servers, data storage devices, network switches, software, and computer peripherals. Dell also sells HDTVs, cameras, printers, MP3 players and other electronics built by other manufacturers. The company is well known for its innovations in supply chain management and electronic commerce.
Fortune Magazine listed Dell as the sixth largest company in Texas by total revenue. It is the second largest non-oil company in Texas (behind AT&T) and the largest company in the Austin area.

^{APPLE COMPUTER}

Apple Inc. (NASDAQ: AAPL; NYSE: 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; the Safari internet browser; and iOS, a mobile operating system. As of August 2010^[update], the company operates 301 retail store in ten countries and an online store where hardware and software products are sold As of May 2011^[update], Apple is one of the largest companies in the world and the most valuable technology company in the world, having surpassed Microsoft.

MICROSOFT

Microsoft Corporation (NASDAQ: MSFT) is an American public multinational corporation headquartered in Redmond, Washington, USA that develops, manufactures, licenses, and supports a wide range of products and services predominantly related to computing through its various product divisions. Established on April 4, 1975 to develop and sell BASIC interpreters for the Altair 8800, Microsoft rose to dominate the home computer operating system market with MS-DOS in the mid-1980s, followed by the Microsoft Windows line of operating systems. Microsoft would also come to dominate the office suite market with Microsoft Office. The company has diversified in recent years into the video game industry with the Xbox and its successor, the Xbox 360 as well as into the consumer electronics and digital services market with Zune, MSN and the Windows Phone OS. The ensuing rise of stock in the company's 1986 initial public offering (IPO) made an estimated four billionaires and 12,000 millionaires from Microsoft employees. In May 2011, Microsoft Corporation acquired Skype Communications for $8.5 billion dollars.

INTEL
Intel Corporation (NASDAQ: INTC) is an American global technology company and the world's largest semiconductor chip maker, based on revenue.It is the inventor of the x86 series of microprocessors, the processors found in most personal computers. Intel was founded on July 18, 1968, as Integrated Electronics Corporation (though a common misconception is that "Intel" is from the word intelligence) and is based in Santa Clara, California, USA. Intel also makes motherboard chipsets, network interface controllers and integrated circuits, flash memory, graphic chips, embedded processors and other devices related to communications and computing. Founded by semiconductor pioneers Robert Noyce and Gordon Moore and widely associated with the executive leadership and vision of Andrew Grove, Intel combines advanced chip design capability with a leading-edge manufacturing capability. Though Intel was originally known primarily to engineers and technologists, its "Intel Inside" advertising campaign of the 1990s made it and its Pentium processor household names.