macintosh os

Model: M0001 Introduced: January 1984 Price: US$2495 CPU: Motorola 68000, 7.83 Mhz RAM: 128K, later 512K Display: 9-inch monochrome screen 512x342 pixels Ports: Two DB9 serial ports Printer port External floppy port Storage: Internal 400K SSDD floppy optional external floppy ($495) OS: Macintosh GUI (graphical user interface)

The Macintosh project started in the late 1970s with Jef Raskin, an Apple employee, who envisioned an easy-to-use, low-cost computer for the average consumer. He wanted to name the computer after his favorite type of apple, the McIntosh,[4] but the name had to be changed for legal reasons as it was too close, phonetically, to that of the McIntosh audio equipment manufacturer. Steve Jobs requested a release of the name so that Apple could use it but this was denied forcing Apple to eventually buy the rights to use the name.[5] Raskin was authorized to start hiring for the project in September 1979,[6] and he began to look for an engineer who could put together a prototype. Bill Atkinson, a member of Apple's Lisa team (which was developing a similar but higher-end computer), introduced him to Burrell Smith, a service technician who had been hired earlier that year. Over the years, Raskin assembled a large development team that designed and built the original Macintosh hardware and software; besides Raskin, Atkinson and Smith, the team included George Crow,[7] Chris Espinosa, Joanna Hoffman, Bruce Horn, Susan Kare, Andy Hertzfeld, Guy Kawasaki, Daniel Kottke,[8] and Jerry Manock.[9][10] Smith’s first Macintosh board was built to Raskin’s design specifications: it had 64 kilobytes (KB) of RAM, used the Motorola 6809E microprocessor, and was capable of supporting a 256×256 pixel black-and-white bitmap display. Bud Tribble, a Macintosh programmer, was interested in running the Lisa’s graphical programs on the Macintosh, and asked Smith whether he could incorporate the Lisa’s Motorola 68000 microprocessor into the Mac while still keeping the production cost down. By December 1980, Smith had succeeded in designing a board that not only used the 68000, but bumped its speed from 5 to 8 megahertz (MHz); this board also had the capacity to support a 384×256 pixel display. Smith’s design used fewer RAM chips than the Lisa, which made production of the board significantly more cost-efficient. The final Mac design was self-contained and had the complete QuickDraw picture language and interpreter in 64 KB of ROM – far more than most other computers; it had 128 KB of RAM, in the form of sixteen 64 kilobit (Kb) RAM chips soldered to the logicboard. Though there were no memory slots, its RAM was expandable to 512 KB by means of soldering sixteen chip sockets to accept 256 Kb RAM chips in place of the factory-installed chips. The final product's screen was a 9-inch, 512x342 pixel monochrome display, exceeding the prototypes.[11] 1985 to 1989: Desktop publishing era In 1985, the combination of the Mac, Apple’s LaserWriter printer, and Mac-specific software like Boston Software’s MacPublisher and Aldus PageMaker enabled users to design, preview, and print page layouts complete with text and graphics—an activity to become known as desktop publishing. Initially, desktop publishing was unique to the Macintosh, but eventually became available for Commodore 64 (GEOS) and IBM PC users as well.[29] Later, applications such as Macromedia FreeHand, QuarkXPress, Adobe Photoshop, and Adobe Illustrator strengthened the Mac’s position as a graphics computer and helped to expand the emerging desktop publishing market. The limitations of the first Mac soon became clear: it had very little memory, even compared with other personal computers in 1984, and could not be expanded easily; and it lacked a hard disk drive or the means to attach one easily. In October 1985, Apple increased the Mac’s memory to 512 KB, but it was inconvenient and difficult to expand the memory of a 128 KB Mac.[30] In an attempt to improve connectivity, Apple released the Macintosh Plus on January 10, 1986 for US$2,600. It offered one megabyte of RAM, expandable to four, and a then-revolutionary SCSI parallel interface, allowing up to seven peripherals—such as hard drives and scanners—to be attached to the machine. Its floppy drive was increased to an 800 KB capacity. The Mac Plus was an immediate success and remained in production, unchanged, until October 15, 1990; on sale for just over four years and ten months, it was the longest-lived Macintosh in Apple's history.[31] Updated Motorola CPUs made a faster machine possible, and in 1987 Apple took advantage of the new Motorola technology and introduced the Macintosh II, which used a 16 MHz Motorola 68020 processor.[32] The primary improvement in the Macintosh II was Color QuickDraw in ROM, a color version of the graphics language which was the heart of the machine. Among the many innovations in Color QuickDraw were an ability to handle any display size, any color depth, and multiple monitors. Other issues remained, particularly the low processor speed and limited graphics ability, which had hobbled the Mac’s ability to make inroads into the business computing market. The Macintosh II marked the start of a new direction for the Macintosh, as now, for the first time, it had an open architecture, with several expansion slots, support for color graphics, and a modular break-out design similar to that of the IBM PC and inspired by Apple’s other line, the expandable Apple II series. It had an internal hard drive and a power supply with a fan, which was initially fairly loud.[33] One third-party developer sold a device to regulate fan speed based on a heat sensor, but it voided the warranty.[34] Later Macintosh computers had quieter power supplies and hard drives. In September 1986 Apple introduced the Macintosh Programmer's Workshop, or MPW that allowed software developers to create software for Macintosh on Macintosh, rather than cross-developing from a Lisa. In August 1987 Apple unveiled HyperCard, and introduced MultiFinder, which added cooperative multitasking to the Macintosh. In the Fall Apple bundled both with every Macintosh. The Macintosh SE was released at the same time as the Macintosh II, as the first compact Mac with a 20 MB internal hard drive and one expansion slot.[35] The SE also updated Jerry Manock and Terry Oyama's original design and shared the Macintosh II's Snow White design language, as well as the new Apple Desktop Bus (ADB) mouse and keyboard that had first appeared on the Apple IIGS some months earlier. In 1987, Apple spun off its software business as Claris. It was given the code and rights to several applications that had been written within Apple, notably MacWrite, MacPaint, and MacProject. In the late 1980s, Claris released a number of revamped software titles; the result was the “Pro” series, including MacPaint Pro, MacDraw Pro, MacWrite Pro, and FileMaker Pro. To provide a complete office suite, Claris purchased the rights to the Informix Wingz spreadsheet on the Mac, renaming it Claris Resolve, and added the new presentation software Claris Impact. By the early 1990s, Claris applications were shipping with the majority of consumer-level Macintoshes and were extremely popular. In 1991, Claris released ClarisWorks, which soon became their second best-selling application. When Claris was reincorporated back into Apple in 1998, ClarisWorks was renamed AppleWorks beginning with version 5.0.[36] In 1988, Apple sued Microsoft and Hewlett-Packard on the grounds that they infringed Apple’s copyrighted GUI, citing (among other things) the use of rectangular, overlapping, and resizable windows. After four years, the case was decided against Apple, as were later appeals. Apple’s actions were criticized by some in the software community, including the Free Software Foundation (FSF), who felt Apple was trying to monopolize on GUIs in general, and boycotted GNU software for the Macintosh platform for seven years.[37][38] With the new Motorola 68030 processor came the Macintosh IIx in 1988, which had benefited from internal improvements, including an on-board MMU.[39] It was followed in 1989 by a more compact version with fewer slots (the Macintosh IIcx)[40] and a version of the Mac SE powered by the 16 MHz 68030, the Macintosh SE/30.[41] Later that year, the Macintosh IIci, running at 25 MHz, was the first Mac to be “32-bit clean,” allowing it to natively support more than 8 MB of RAM,[42] unlike its predecessors, which had “32-bit dirty” ROMs (8 of the 32 bits available for addressing were used for OS-level flags). System 7 was the first Macintosh operating system to support 32-bit addressing.[43] Apple also introduced the Macintosh Portable, a 16 MHz 68000 machine with an active matrix flat panel display that was backlit on some models.[44] The following year the Macintosh IIfx, starting at US$9,900, was unveiled. Apart from its fast 40 MHz 68030 processor, it had significant internal architectural improvements, including faster memory and two Apple II-era CPUs dedicated to I/O processing.[45] 1998 to 2005: New beginnings The original "Bondi Blue" iMac G3. Introduced in 1998, it led Apple's return to profitability. However, the associated mouse proved to be one of consumer's least favorite Apple products.[64] In 1998, a year after Steve Jobs had returned to the company, Apple introduced an all-in-one Macintosh called the iMac. Its translucent plastic case, originally Bondi blue and later many other colors, is considered an industrial design hallmark of the late 1990s. The iMac did away with most of Apple's standard (and usually proprietary) connections, such as SCSI and ADB, in favor of two USB ports. It also had no internal floppy disk drive and instead used compact discs for removable storage.[3][65] It proved to be phenomenally successful, with 800,000 units sold in 139 days,[66] making the company an annual profit of US$309 million—Apple's first profitable year since Michael Spindler took over as CEO in 1995.[67] The "blue and white" aesthetic was applied to the Power Macintosh, and then to a new product: the iBook. Introduced in July 1999, the iBook was Apple's first consumer-level laptop computer. More than 140,000 pre-orders were placed before it started shipping in September,[68] and by October it was as much a sales hit as the iMac.[69] Apple continued to add new products to their lineup, such as the Power Mac G4 Cube,[70] the eMac for the education market and PowerBook G4 laptop for professionals. The original iMac used a G3 processor, but the upgrades to G4 and then to G5 chips were accompanied by a new design, dropping the array of colors in favor of white plastic. Current iMacs use aluminum enclosures. On January 11, 2005, Apple announced the release of the Mac Mini priced at US$499,[71] the least expensive Mac to date.[72] Mac OS continued to evolve up to version 9.2.2, including retrofits such as the addition of a nanokernel and support for Multiprocessing Services 2.0 in Mac OS 8.6.[73] Ultimately its dated architecture made replacement necessary. As such, Apple introduced Mac OS X, a fully overhauled Unix-based successor to Mac OS 9, using Darwin, XNU, and Mach as foundations, and based on NEXTSTEP. Mac OS X was not released to the public until September 2000, as the Mac OS X Public Beta, with an Aqua interface. At US$29.99, it allowed adventurous Mac users to sample Apple’s new operating system and provide feedback for the actual release.[74] The initial release of Mac OS X, 10.0 (nicknamed Cheetah), was released on March 24, 2001. Older Mac OS applications could still run under early Mac OS X versions, using an environment called Classic. Subsequent releases of Mac OS X were 10.1 "Puma" (September 25, 2001), 10.2 "Jaguar" (August 24, 2002), 10.3 "Panther" (October 24, 2003), 10.4 "Tiger" (April 29, 2005), 10.5 "Leopard" (October 26, 2007), 10.6 "Snow Leopard" (August 28, 2009), and 10.7 "Lion" scheduled for 2011.[75] Leopard and Snow Leopard each received certification as a Unix implementation by The Open Group.[76][77] 2006 onward: Intel era The MacBook Pro is the first Mac notebook to use an Intel processor. It was released at Macworld 2006.[78] Apple discontinued the use of PowerPC microprocessors in 2006. At WWDC 2005, Steve Jobs revealed this transition and also noted that Mac OS X was in development to run both on Intel and PowerPC architecture from the very beginning.[79] All new Macs now use x86 processors made by Intel, and some Macs were given new names to signify the switch.[80] Intel-based Macs can run pre-existing software developed for PowerPC using an emulator called Rosetta,[81] although at noticeably slower speeds than native programs, and the Classic environment is unavailable. With the release of Intel-based Mac computers, the potential to natively run Windows-based operating systems on Apple hardware without the need for emulation software such as Virtual PC was introduced. In March 2006, a group of hackers announced that they were able to run Windows XP on an Intel-based Mac. The group released their software as open source and has posted it for download on their website.[82] On April 5, 2006 Apple announced the public beta availability of their own Boot Camp software which allows owners of Intel-based Macs to install Windows XP on their machines; later versions added support for Windows Vista. Boot Camp became a standard feature in Mac OS X 10.5, while support for Classic was dropped from PowerPC Macs.[83][84] Apple's recent industrial design has shifted to favor aluminum and glass, which is billed as environmentally friendly.[85] The iMac and MacBook Pro lines use aluminum enclosures, and both are now made of a single unibody.[86][87] Chief designer Jonathan Ive continues to guide products towards a minimalist and simple feel,[88][89] including the elimination of replaceable batteries in notebooks.[90] Multi-touch gestures from the iPhone's interface have been applied to the Mac line in the form of touch pads on notebooks and the Magic Mouse for desktops. In recent years, Apple has seen a significant boost in sales of Macs. Many claim that this is due, in part, to the success of the iPod, a halo effect whereby satisfied iPod owners purchase more Apple equipment.[citation needed] The inclusion of the Intel chips is also a factor. From 2001 to 2008, Mac sales increased continuously on an annual basis. Apple reported sales of 3.36 million Macs during the 2009 holiday season.[91]