1984 (advertisement) in the context of Big Brother (Nineteen Eighty-Four)

Mac is a brand of personal computers designed and marketed by Apple since 1984. The name is short for Macintosh (its official name until 1999), a reference to the McIntosh apple. The current product lineup includes the MacBook Air and MacBook Pro laptops, and the iMac, Mac Mini, Mac Studio, and Mac Pro desktops. Macs are currently sold with Apple's UNIX-based macOS operating system, which is not licensed to other manufacturers and exclusively bundled with Mac computers. This operating system replaced Apple's original Macintosh operating system, which has variously been named System, Mac OS, and Classic Mac OS.

Jef Raskin conceived the Macintosh project in 1979, which was usurped and redefined by Apple co-founder Steve Jobs in 1981. The original Macintosh was launched in January 1984 at US$2,495 (equivalent to $7,600 in 2024), after Apple's "1984" advertisement during Super Bowl XVIII. A series of incrementally improved models followed, sharing the same integrated case design. In 1987, the Macintosh II brought color graphics, but priced as a professional workstation and not a personal computer. Beginning in 1994 with the Power Macintosh, the Mac transitioned from Motorola 68000 series processors to PowerPC. Macintosh clones by other manufacturers were also briefly sold afterwards. The line was refreshed in 1998 with the launch of the iMac G3, reinvigorating the line's competitiveness against commodity IBM PC compatibles. Macs transitioned to Intel x86 processors by 2006 along with new sub-product lines MacBook and Mac Pro. Since 2020, Macs have transitioned to Apple silicon chips based on ARM64.
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The Macintosh, later rebranded as the Macintosh 128K, is the original Macintosh personal computer from Apple. It is the first successful mass-market all-in-one desktop personal computer with a graphical user interface, built-in screen and mouse. It was pivotal in establishing desktop publishing as a general office function. The motherboard, a 9 in (23 cm) CRT monochrome monitor, and a floppy drive are in a beige case with an integrated carrying handle; it has a keyboard and single-button mouse.

The Macintosh was introduced by a television commercial titled "1984" during Super Bowl XVIII on January 22, 1984, directed by Ridley Scott. Sales were strong at its initial release on January 24, 1984, at US$2,495 (equivalent to $7,600 in 2024), and reached 70,000 units on May 3, 1984. Upon the release of its successor, the Macintosh 512K, it was rebranded as the Macintosh 128K. The computer's model number is M0001.

Apple Inc. has had many notable advertisements since the 1980s. The "1984" Super Bowl commercial introduced the original Macintosh mimicking imagery from George Orwell's 1984. The 1990s Think Different campaign linked Apple to famous social figures such as John Lennon and Mahatma Gandhi, while also introducing "Think Different" as a new slogan for the company. Other popular advertising campaigns include the 2000s "iPod People", the 2002 Switch campaign, and most recently the Get a Mac campaign which ran from 2006 to 2009.

While Apple's advertisements have been mostly successful, they have also been met with controversy from consumers, artists and other corporations. For instance, the "iPod People" campaign was criticized for copying a campaign from a shoe company called Lugz. Another instance was when photographer Louie Psihoyos filed suit against Apple for using his "wall of videos" imagery to advertise for Apple TV without his consent.