The Single UNIX Specification (SUS) is a standard for computer operating systems, compliance with which is required to qualify for using the "UNIX" trademark. The standard specifies programming interfaces for the C language, a command-line shell, and user commands. The core specifications of the SUS known as Base Specifications are developed and maintained by the Austin Group, which is a joint working group of IEEE, ISO/IEC JTC 1/SC 22/WG 15 and The Open Group. If an operating system is submitted to The Open Group for certification, and passes conformance tests, then it is deemed to be compliant with a UNIX standard such as UNIX 98 or UNIX 03.
System 7, codenamed "Big Bang", and renamed Mac OS 7 since version 7.6, is the main operating system for Macintosh computers from Apple Computer. It succeeded System 6 upon launch on May 13, 1991, and new features since then include virtual memory, personal file sharing, QuickTime, QuickDraw 3D, and an improved user interface.
In Apple's Macintosh operating systems, labels are a type of seven distinct colored and named parameters of metadata that can be attributed to items in the filesystem. Labels were introduced in Macintosh System 7, released in 1991, and they were an improvement of the ability to colorize items in earlier versions of the Finder. Labels remained a feature of the Macintosh operating system through the end of Mac OS 9 in late 2001, but they were omitted from Mac OS X versions 10.0 to 10.2, before being reintroduced in version 10.3 in 2003, though not without criticism. During the short time period when Mac OS X lacked labels, third-party software replicated the feature.
Mac OS 8 is an operating system that was released by Apple Computer on July 26, 1997. It includes the largest overhaul of the classic Mac OS experience since the release of System 7, approximately six years before. It places a greater emphasis on color than prior versions. Released over a series of updates, Mac OS 8 represents an incremental integration of many of the technologies which had been developed from 1988 to 1996 for Apple's overly ambitious OS named Copland. Mac OS 8 helped modernize the Mac OS while Apple developed its next-generation operating system, Mac OS X.
These tables provide a comparison of operating systems, of computer devices, as listing general and technical information for a number of widely used and currently available PC or handheld operating systems. The article "Usage share of operating systems" provides a broader, and more general, comparison of operating systems that includes servers, mainframes and supercomputers.
Jeffrey L. Robbin is an executive and software engineer at Apple, Inc. He developed the SoundJam music player software, which was acquired by Apple in 2000. There, he created iTunes, and was "closely involved" with the iPod's development. In 2011, Bloomberg reported that he was leading development of an Apple television set, a device rumored in Steve Jobs's autobiography. As of 2018, he led the Apple Music product and engineering teams.
Norton Utilities is a utility software suite designed to help analyze, configure, optimize and maintain a computer. The latest version of the original series of Norton Utilities is Norton Utilities 16 for Windows XP/Vista/7/8 was released 26 October 2012.
Glider is a Macintosh video game written by John Calhoun and first published as shareware in 1988 under the company name Soft Dorothy Software. The object of the game is to fly a paper plane through the rooms of a house. Air currents from heat ducts and fans affect the plane's movement, while assorted household objects are usually deadly. Some rooms have special mechanics, such as the ability to slide along grease-covered surfaces. Each room is presented as a two-dimensional side view.
Extension conflicts were sometimes a common nuisance on Apple Macintosh computers running the classic Mac OS, especially System 7. Extensions were bundles of code that extended the operating system's capabilities by directly patching OS calls, thus receiving control instead of the operating system when applications made system calls. Generally, once an extension completed its task, it was supposed to pass on the system call to the operating system's routine. If multiple extensions want to patch the same system call, they end up receiving the call in a chain, the first extension in line passing it on to the next, and so on in the order they are loaded, until the last extension passes to the operating system. If an extension does not hand the next extension in line what it is expecting, problems occur; ranging from unexpected behavior to full system crashes. This is triggered by several factors such as carelessly programmed and malicious extensions that change or disrupt the way part of the system software works.
SoundJam MP is a discontinued MP3 player for classic Mac OS-compatible computers and Rio-compatible hardware synchronization manager that was released in July 1999 and was available until June 2001. Jeff Robbin and Bill Kincaid developed SoundJam MP with assistance from Dave Heller. Robbin and Kincaid chose Casady & Greene to publish SoundJam MP. Apple, Inc. purchased SoundJam MP in 2000 and further developed the code to create iTunes version 1.0. Casady and Greene ceased publication of SoundJam MP in June 2001 at the request of the developers.
Casady & Greene was a software publisher and developer active from 1988 to 2003. The company primarily released software for Macintosh, but also released software for Windows and Newton. Casady & Greene was formed in 1988 when Greene, Inc. acquired CasadyWare, a company owned by Robin Casady.
Unsanity was a macOS shareware software developer founded in May 2000, notable for coining the term "haxie". Unsanity produced Mac utilities that relied on their own Application Enhancer, a utility that modified the system and other applications. Software incompatibility with Mac OS X Leopard, Snow Leopard, and Lion ended Unsanity's offerings.
Norton SystemWorks is a discontinued utility software suite by Symantec Corp. It integrates three of Symantec's most popular products – Norton Utilities, Norton CrashGuard and Norton AntiVirus – into one program designed to simplify solving common PC issues. Backup software was added later to high-end editions. SystemWorks was innovative in that it combined several applications into an all-in-one software for managing computer health, thus saving significant costs and time often spent on using different unrelated programs. SystemWorks, which was introduced in 1998 has since inspired a host of competitors such as iolo System Mechanic, McAfee Nuts And Bolts, Badosoft First Aid and many others.
QuickDEX is a free form database software application first released by Casady & Greene for the classic Mac OS. An update, QuickDEX II was released and the product eventually became InfoGenie and then iData Pro. The purpose of this software is to store text data that doesn't fit into more rigid database structures. QuickDEX and its successors featured an extremely fast search, phone dialing, as well as label and envelope printing. InfoGenie and iData Pro 1.0 added the ability to have user-defined fields in a record along with the freeform text area.
William S. Kincaid is an American computer engineer and entrepreneur notable for creating the MP3 player SoundJam MP with Jeff Robbin that was eventually bought by Apple and renamed iTunes.
The classic Macintosh startup sequence includes hardware tests which may trigger the startup chime, Happy Mac, Sad Mac, and Chimes of Death. On Macs running macOS Big Sur or later, the startup sound is enabled by default. However, it can be disabled by the user within System Preferences or System Settings.
Patrick Buckland is a British video game programmer, designer and chief executive officer of Stainless Games, which he co-founded with Neil Barnden in 1994.
Mac OS is the series of operating systems developed for the Macintosh family of personal computers by Apple Computer, Inc. from 1984 to 2001, starting with System 1 and ending with Mac OS 9. The Macintosh operating system is credited with having popularized the graphical user interface concept. It was included with every Macintosh that was sold during the era in which it was developed, and many updates to the system software were done in conjunction with the introduction of new Macintosh systems.
Spell Catcher, originally known as Thunder!, is a stand-alone spell checker for Atari ST, Macintosh and Microsoft Windows systems. It was published continually from 1985 until the untimely 2012 death of the primary developer, Evan Gross. Its original name refers to its lightning-fast speed, which set it apart from other spell checkers on the platform like Spellswell.
