Doom became a " killer app " that all capable consoles and operating systems were expected to have, and versions of Doom have subsequently been released for the following systems: DOS, Microsoft Windows, Linux, Apple Macintosh, Super NES, Sega 32X, Sony PlayStation, Game Boy Advance, iOS, Symbian OS, RISC OS, Atari Jaguar, Sega Saturn, Nintendo 64, Tapwave Zodiac, 3DO, Xbox, and Xbox Live Arcade.

Apple also made changes to applications: they resume in the same state as they were before they were closed ( similar to iOS ).

Apple purchased NeXT on December 20, 1996 for $ 429 million and 1. 5 million shares of Apple stock, and much of the current OS X and iOS operating systems are built on the OPENSTEP foundation.

* Apple iTunes, used on Mac OS X and Microsoft Windows to sync iOS devices ( such as the iPhone and iPod touch )

( Other UNIX implementations built on top of the Mach kernel are NeXTSTEP, MkLinux Mac OS X and Apple iOS.

The Apple iOS operating system used on the iPhone, iPad and iPod Touch uses VoiceOver speech synthesis for accessibility.

Chez-Maze is a chess based game of challenging puzzles developed for ' Apple ' products based on iOS.

A keen fisherman, Tarrant launched the Fishing with Chris Tarrant application for the Apple Inc. iPhone and other iOS devices in August 2010, in association with Angling Times magazine.

Safari is a web browser developed by Apple Inc. and included with the Mac OS X and iOS operating systems.

On June 11, 2012, Apple released a developer preview of Safari 6. 0 with a feature called iCloud Tabs, which allows users to ' sync ' their open tabs with any iOS or other OS X device running the latest software.

In June 2010, Apple introduced iOS 4, which included APIs to allow third-party applications to multitask, and the iPhone 4, with an improved display and back-facing camera, a front-facing camera for videoconferencing, and other improvements.

Along with the iPhone 4S Apple also released iOS 5 and iCloud, untethered device activation, backup, and synchronization, along with additional features.

These include those based on Linux, such as Google's Android, Nokia's Maemo, Hewlett-Packard's webOS, and those based on BSD, such as the Darwin-based Apple iOS.

On June 15, 2010, Apple released an Apple Store app for iOS.

On September 20, 2012, Swiss and world media reported that the design of this clock was illegally copied without prior permission by Apple Inc. for its use as the iOS 6 clock application on the iPad.

On Apple iOS devices, you can press and hold " n " or " N " on the touch screen.

* Apple iOS and other devices restricted to running pre-approved applications from a digital distribution service.

In mobile platform-oriented Unixen such as Apple iOS and Android, the device's security systems must be cracked in order to obtain superuser access.

At an Apple media event on March 7, 2012 Tim Cook announced a new version of iPhoto for use on the iOS mobile operating system .. iPhoto for iOS was made available that day on the App Store for $ 4. 99 alongside the already-released iMovie and GarageBand for iOS.

iOS features a mobile version of Apple Mail with added ActiveSync support, though it is still missing the functionality of attaching files to reply emails.

AppleTalk was released for the original Macintosh in 1985, and was the primary protocol used by Apple devices through the 1980s and 90s.

This eventually leads to the practice of indexing, which is used by almost every operating system from Windows to the system that operates Apple iPod devices.

* Accelerometers in consumer electronics devices such as game controllers ( Nintendo Wii ), personal media players / cell phones ( Apple iPhone, various Nokia mobile phone models, various HTC PDA models ) and a number of Digital Cameras ( various Canon Digital IXUS models ).

In 2010 a new paid version was released for the Apple iPhone and iPad, making use of those devices ' multi-touch capabilities.

It is used in a number of systems such as most Android-based systems, the Apple iPhone and iPad, RIM devices, Nintendo Game Boy Advance and Nintendo DS, etc.

Affected devices include Apple iPhone, HTC EVO4G, LG Thrill, Research in Motion Torch, Samsung Galaxy S and Galaxy S II, and Sony Xperia Play smartphones.

Unfortunately, when mixing and matching Apple and non-Apple 10BASE2 devices, there were many seemingly natural configurations of cables and connectors which would cause the network to become unreliable or unusable in the area, reducing the value of the complex and proprietary Apple 10BASE2 wiring system.

The Zoomer failed commercially, but Palm managed to survive through selling synchronization software for HP devices, and the Graffiti handwriting recognition software for the Apple Newton MessagePad.

* GeneXus: A Windows Rapid Software Development Solution for Cross-Platform application creation and deployment based on knowledge representation and supporting C #, Cobol, Java including Android and BlackBerry smart devices, Objective-C for Apple mobile devices, RPG, Ruby, Visual Basic, and Visual FoxPro.

** Newton devices running the Newton OS, also from Apple

* Apple II accelerators, hardware devices design to speed up an Apple II computer

Apple's iTunes software can be used to transfer music to the devices from computers using certain versions of Apple Macintosh and Microsoft Windows operating systems.

Apple Desktop Bus ( ADB ) is a bit-serial computer bus connecting low-speed devices to computers.

* Complete hardware specification of ADB devices and protocol ( Apple Guide to the Macintosh Family Hardware )

* Apple Desktop Bus, a bit-serial computer bus for connecting low-speed devices to computers

Some early microcomputing devices such as the Apple II sometimes required the end-user to physically cut some wires and solder others together to make configuration changes.

* In 2005, the Federal Court of Appeal overruled a 2003 Copyright Board decision which had applied the blank media levy to MP3 players such as Apple Inc .' s iPod, on the basis that such devices did not qualify as " audio recording medium " as per the Copyright Act definition.

The browser is currently available for Apple mobile devices and on desktops.

On February 22, 2010, WGN-TV became the first television station in the Chicago market to allow iPhone users to watch live streams of its newscasts ; the 6-9 a. m. block of the WGN Morning News, the midday and 5 p. m. newscasts are intially available for streaming to iPhone users ; at present, all newscasts are streamed through the station's website and on Apple devices.

The second incarnation was a much smaller unit the width of two 5¼ " floppy drives stacked on top of each other, and the third incarnation looked like a flattened Apple with a built-in keyboard.

At that time MCP did also sell imported home computers like the TRS-80, the Video Genie, ( another TRS-80 clone ), the Luxor ABC 80 and the Apple II.

However, as the system was reaching completion, the personal computer revolution was starting with the release of machines like the Commodore PET, TRS-80 and Apple II.

Early personal computers like the Apple II and the IBM PC integrated an internal backplane for expansion cards.

Some years later it was learned that they had licensed it to Apple for something like $ 40, 000.

Jonathan Ive has received several awards for his design of Apple Inc. products like this MacBook.

After hearing about the pioneering GUI technology being developed at Xerox PARC from former Xerox employees like Raskin, Jobs negotiated a visit to see the Xerox Alto computer and Smalltalk development tools in exchange for Apple stock options.

Touchscreens are becoming popular with the introduction of palmtop computers like those sold by the Palm, Inc. hardware manufacturer, some high range classes of laptop computers, mobile smartphones like HTC or the Apple Inc. iPhone, and the availability of standard touchscreen device drivers into the Symbian, Palm OS, Mac OS X, and Microsoft Windows operating systems.

For compatibility with the Laserwriter II, Apple developed fonts like ITC Bookman and ITC Chancery in Truetype format.

This may result in desktop interfaces akin to those of Microsoft Windows or the Apple Macintosh ( examples include Metacity in GNOME, KWin in KDE Software Compilation, Xfwm in Xfce, or Compiz ) or have radically different controls ( such as a tiling window manager, like wmii or Ratpoison ).

* Apple introduces the iMac computer, initiating a trend in computer design towards translucent plastics and multicolor case design, discontinuing many legacy technologies like serial ports, and beginning a resurgence in the company's fortunes that continues unabated to this day.

Inspired by the Xerox Star and Apple Lisa, TPS ( Technical Publishing Software ) uniquely enabled authors to write their text and create technical graphics on a computer screen that showed what the page would look like when formatted and printed on a laser printer.

After 1987, IBM PC compatibles dominated both the home and business markets of commodity computers, with other notable alternative architectures being used in niche markets, like the Macintosh computers offered by Apple Inc. and used mainly for desktop publishing at the time, the aging 8-bit Commodore 64 which was selling for $ 150 by this time and became the world's best-selling computer, the 16-bit Commodore Amiga line used for television and video production and the 16-bit Atari ST used by the music industry.

The contemporary typefaces used by computers, from simple word processing programs like Microsoft Word or Apple Pages to professional designers ' software packages like Adobe InDesign, owe a considerable debt to the past and to a small number of professional typeface designers today ( Zapf 2007 ; Mediavilla 2006 ; Henning 2002 ).

Even for 8-bit computers like the Apple II and Commodore 64 software was published: Home Publisher, The Newsroom and geoPublish.

Times Roman, and its licensees like Adobe and Apple, is the font family used by Linotype.

As prices dropped and the market matured, the monochrome ( green text on black screen ) PET was at a disadvantage in the market when compared to machines like the Apple II and Atari 800, which offered color graphics, and could be hooked to a television as an inexpensive display.

Some editing software can now be accessed free as web applications ; some, like Cinelerra ( focused on the professional market ) and Blender3D, can be downloaded as free software ; and some, like Microsoft's Windows Movie Maker or Apple Inc .' s iMovie, come included with the appropriate operating system.

It proved unpopular as it did not include a mouse ( which is an essential part of the IIGS, much like the Macintosh ); the keyboard, although functional, does not mimic all the features and functions of the Apple Desktop Bus keyboard, as well as lacking a numeric keypad ; and some cards designed for the new 16-bit machine did not fit in the Apple IIe's slanted case either.

The performance of early core memories can be characterized in today's terms as being very roughly comparable to a clock rate of 1 MHz ( equivalent to early 1980s home computers, like the Apple II and Commodore 64 ).