The System suitcase (so-called because its icon depicts a suitcase; officially called the System file) is one of two essential files that make up the classic Mac OS, the other being the Macintosh Finder. [1] [2] If either file is missing or corrupted, a Mac may display a blinking question mark when booting. [3] The suitcase is located in the System Folder, like the Finder file, [1] and contains keyboard layouts, FKEY resources, cursors, icons, sounds, and, in System 6, bitmap fonts, and desk accessories. [4] [5] [6] Mac OS only supports one System file; the presence of more than one System file on a hard disk is likely to cause system instability. [7]
In versions released up to and including System 6, the System file could not be opened by the Finder. Files could only be moved into or out of the System file using Apple's built-in Font/DA Mover tool. [6] [8] A large System file could cause system instability and could easily become corrupt, requiring users to wipe and rebuild it. [6]
In System 7 and subsequent releases, Apple moved several components of the System file to other locations, to reduce the file's bloat and improve stability. In System 7, desk accessories were turned into normal applications that could be placed anywhere on the hard disk, though their default location is a new "Apple Menu Items". System 7's Finder gained the ability to open and modify the System file as if it were a normal folder. Users could double click on fonts or sounds contained in the System file to preview them. Sounds, keyboard layouts and fonts could be aded to the System file through drag and drop. [6] System 7 also gained the ability to install bitmapped or TrueType fonts by dragging and dropping them onto the System Folder, which would move them to the System file. [9] [10] Font/DA Mover was removed in System 7, as it was no longer needed. [11]
System 7.1 moved fonts from the System suitcase to a new Fonts folder within the System folder. From then on, fonts could be installed by moving them to the Fonts subfolder, [9] [10] though they would only become available to applications after the latter were restarted. [12]
Several third-party apps were created to manage the System suitcase. Symantec's Suitcase was the "industry standard" for managing fonts. ALsoft's Master Juggler could also manage Fkeys, items in the Apple menu, and system sounds. [13] [14]
In System 6, the string "Help! Help! We're being held prisoner in a system software factory!" appears in the data fork of the System file. During System 7 development, it was updated to "Help! Help! We're still being held prisoner in a system software factory!". Later versions of System 7 contain other variations of the message. A list of credits also follows in each case. [15]
TrueType is an outline font standard developed by Apple in the late 1980s as a competitor to Adobe's Type 1 fonts used in PostScript. It has become the most common format for fonts on the classic Mac OS, macOS, and Microsoft Windows operating systems.
The Finder is the default file manager and graphical user interface shell used on all Macintosh operating systems. Described in its "About" window as "The Macintosh Desktop Experience", it is responsible for the launching of other applications, and for the overall user management of files, disks, and network volumes. It was introduced with the first Macintosh computer, and also exists as part of GS/OS on the Apple IIGS. It was rewritten completely with the release of Mac OS X in 2001.
System 7, codenamed "Big Bang", and also known as Mac OS 7, is a graphical user interface-based operating system for Macintosh computers and is part of the classic Mac OS series of operating systems. It was introduced on May 13, 1991, by Apple Computer It succeeded System 6, and was the main Macintosh operating system until it was succeeded by Mac OS 8 in 1997. Current for more than six years, System 7 was the longest-lived major version series of the classic Macintosh operating system. Features added with the System 7 release included virtual memory, personal file sharing, QuickTime, QuickDraw 3D, and an improved user interface.
A desk accessory (DA) in computing is a small transient or auxiliary application that can be run concurrently in a desktop environment with any other application on the system. Early examples, such as Sidekick and Macintosh desk accessories, used special programming models to provide a small degree of multitasking on systems that initially did not have any other multitasking ability.
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.
System 6 is a graphical user interface-based operating system for Macintosh computers, made by Apple Computer It was released in 1988, and is part of the classic Mac OS series. It is a monolithic operating system, with cooperative multitasking based on an improved MultiFinder. The boxed version cost US$49, and it was included with all new Macintosh computers until 1991, when it was succeeded by System 7.
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.
PlainTalk is the collective name for several speech synthesis (MacinTalk) and speech recognition technologies developed by Apple Inc. In 1990, Apple invested a lot of work and money in speech recognition technology, hiring many researchers in the field. The result was "PlainTalk", released with the AV models in the Macintosh Quadra series from 1993. It was made a standard system component in System 7.1.2, and has since been shipped on all PowerPC and some 68k Macintoshes.
Macintosh File System (MFS) is a volume format created by Apple Computer for storing files on 400K floppy disks. MFS was introduced with the original Apple Macintosh computer in January 1984.
Apple Inc. uses a large variety of typefaces in its marketing, operating systems, and industrial design with each product cycle. These change throughout the years with Apple's change of style in their products. This is evident in the design and marketing of the company.
At Ease was an alternative to the Macintosh desktop developed by Apple Computer in the early 1990s for the classic Mac OS. It provided a simple environment for new Macintosh users and young children to help them to work without supervision. At Ease replaces the Finder desktop, providing a simple tabbed panel-oriented graphical user interface in which applications and documents are represented by icons on large buttons. Aside from its security features, its interface and basic functionality is very similar to the Packard Bell Navigator.
On the classic Mac OS, extensions were small pieces of code that extended the system's functionality. They were run initially at start-up time, and operated by a variety of mechanisms, including trap patching and other code modifying techniques. Initially an Apple developer hack, extensions became the standard way to provide a modular operating system. Large amounts of important system services such as the TCP/IP network stacks and USB and FireWire support were optional components implemented as extensions. The phrase "system extension" later came to encompass faceless background applications as well.
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.
The System folder is the directory in the classic Mac OS that holds various files required for the system to operate, such as fonts, system extensions, control panels, and preferences.
In the Apple macOS operating system, .DS_Store is a file that stores custom attributes of its containing folder, such as folder view options, icon positions, and other visual information. The name is an abbreviation of Desktop Services Store, reflecting its purpose. It is created and maintained by the Finder application in every folder, and has functions similar to the file desktop.ini in Microsoft Windows. Starting with a period .
character, it is hidden in Finder and many Unix utilities. Its internal structure is proprietary, but has since been reverse-engineered. Starting at macOS 10.12 16A238m, Finder will not display .DS_Store
files.
Apple's Macintosh computer supports a wide variety of fonts. This support was one of the features that initially distinguished it from other systems.
The Apple menu is a drop-down menu that is on the left side of the menu bar in the classic Mac OS, macOS and A/UX operating systems. The Apple menu's role has changed throughout the history of Apple Inc.'s operating systems, but the menu has always featured a version of the Apple logo.
The Macintosh "System 1" is the first version of Apple Macintosh operating system and the beginning of the classic Mac OS series. It was developed for the Motorola 68000 microprocessor. System 1 was released on January 24, 1984, along with the Macintosh 128K, the first in the Macintosh family of personal computers. It received one update, "System 1.1" on December 29, 1984, before being succeeded by System 2.
Mac OS is the series of operating systems developed for the Macintosh family of personal computers by Apple Computer 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.
Comparison of user features of operating systems refers to a comparison of the general user features of major operating systems in a narrative format. It does not encompass a full exhaustive comparison or description of all technical details of all operating systems. It is a comparison of basic roles and the most prominent features. It also includes the most important features of the operating system's origins, historical development, and role.