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SheepShaver
SheepShaver is an open-source PowerPC Apple Macintosh emulator originally designed for BeOS and Linux. The name is a play on ShapeShifter, a Macintosh II emulator for AmigaOS (made obsolete by Basilisk II). The ShapeShifter and SheepShaver projects were originally conceived and programmed by Christian Bauer. However, currently, the main developer is Gwenolé Beauchesne. History SheepShaver was originally commercial software when first released in 1998, but after the demise of Be Inc., the maker of BeOS, it became open source in 2002. It can be run on both PowerPC and x86 systems; however, it runs more slowly on an x86 system than on a PowerPC system, because of the translation between the PowerPC and Intel x86 instruction sets. SheepShaver has also been ported to Microsoft Windows. As a free software, a few variants exist to simplify the installation process on Intel-based Macs: * ‘Sheep Shaver Wrapper’ is built off of Sheep Shaver but it does some of the bundling work ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sheepshaver Settings
SheepShaver is an open-source software, open-source PowerPC Apple Macintosh emulator originally designed for BeOS and Linux. The name is a play on ShapeShifter, a Macintosh II emulator for AmigaOS (made obsolete by Basilisk II). The ShapeShifter and SheepShaver projects were originally conceived and programmed by Christian Bauer. However, currently, the main developer is Gwenolé Beauchesne. History SheepShaver was originally commercial software when first released in 1998, but after the demise of Be Inc., the maker of BeOS, it became open source in 2002. It can be run on both PowerPC and x86 systems; however, it runs more slowly on an x86 system than on a PowerPC system, because of the translation between the PowerPC and Intel x86 instruction sets. SheepShaver has also been ported to Microsoft Windows. As a free software, a few variants exist to simplify the installation process on Intel-based Macs: * ‘Sheep Shaver Wrapper’ is built off of Sheep Shaver but it does some of t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mac OS 9
Mac OS 9 is the ninth and final major release of the classic Mac OS operating system for Macintosh computers, made by Apple Computer. Introduced on October 23, 1999, it was promoted by Apple as "The Best Internet Operating System Ever", highlighting Sherlock 2’s Internet search capabilities, integration with Apple's free online services known as iTools and improved Open Transport networking. While Mac OS 9 lacks protected memory and full pre-emptive multitasking, lasting improvements include the introduction of an automated Software Update engine and support for multiple users. It was succeeded by Mac OS X 10.0 in 2001, the first version of the Mac OS X (now macOS) family of operating systems. Apple discontinued development of Mac OS 9 in late 2001, transitioning all future development to Mac OS X. The final updates to Mac OS 9 addressed compatibility issues with Mac OS X while running in the Classic Environment and compatibility with Carbon applications. At the 2002 W ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Classic Mac OS
Mac OS (originally System Software; retronym: Classic Mac OS) is the series of operating systems developed for the Mac (computer), 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. Apple released the Macintosh 128K, original Macintosh on January 24, 1984. The System 1, first version of the system software, which had no official name, was partially based on the Lisa OS, which Apple previously released for the Apple Lisa, Lisa computer in 1983. As part of an agreement allowing Xerox to buy Share (finance), shares in Apple at a favorable price, it also used concepts from the PARC (company), Xerox ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Basilisk II
Basilisk II is an emulator which emulates Apple Macintosh computers based on the Motorola 68000 series. The software is cross-platform and can be used on a variety of operating systems. Christian Bauer (developer of a Mac 68k emulator ShapeShifter for Amiga) released the first version of Basilisk II in March 1999. The emulator was expected to be highly portable across several computing platforms and provided some improvements in comparison to ShapeShifter - e.g. no limit for number of emulated disks, improved CD-ROM support and support for the host file system. However, early reviews highlighted several issues like difficult configuration and limited compatibility with recommendation of ShapeShifter as a better choice for Amiga users. Newer releases mitigated these problems, 2005 review of the MorphOS version noted only slow CPU emulation (in comparison to built-in 68k CPU emulation for Amiga applications in MorphOS) as a major issue. The latest version of Classic Mac OS that c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mac OS X
macOS, previously OS X and originally Mac OS X, is a Unix, Unix-based operating system developed and marketed by Apple Inc., Apple since 2001. It is the current operating system for Apple's Mac (computer), Mac computers. Within the market of Desktop computer, desktop and laptop computers, it is the Usage share of operating systems#Desktop and laptop computers, second most widely used desktop OS, after Microsoft Windows and ahead of all Linux distributions, including ChromeOS and SteamOS. , the most recent release of macOS is MacOS Sequoia, macOS 15 Sequoia, the 21st major version of macOS. Mac OS X succeeded classic Mac OS, the primary Mac operating systems, Macintosh operating system from 1984 to 2001. Its underlying architecture came from NeXT's NeXTSTEP, as a result of NeXT#1997–2006: Acquisition by Apple, Apple's acquisition of NeXT, which also brought Steve Jobs back to Apple. The first desktop version, Mac OS X 10.0, was released on March 24, 2001. Mac ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Classic Environment
This is a list of built-in apps and system components developed by Apple Inc. for macOS that come bundled by default or are installed through a system update. Many of the default programs found on macOS have counterparts on Apple's other operating systems, most often on iOS and iPadOS. Apple has also included versions of iWork, iMovie, and GarageBand for free with new device activations since 2013. However, these programs are maintained independently from the operating system itself. Similarly, Xcode is offered for free on the Mac App Store and receives updates independently of the operating system despite being tightly integrated. Applications App Store The Mac App Store is macOS's digital distribution platform for macOS apps, created and maintained by Apple Inc. based on the iOS version, the platform was announced on October 20, 2010, at Apple's "Back to the Mac" event. First launched on January 6, 2011, as part of the free Mac OS X 10.6.6 update for all current Snow L ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mac OS 7
System 7 (later named Mac OS 7) is the seventh major release of the classic Mac OS operating system for Macintosh computers, made by Apple Computer. It was launched on May 13, 1991, to succeed System 6 with virtual memory, personal file sharing, QuickTime, TrueType fonts, the Force Quit dialog, and an improved user interface. It was code-named "Big Bang" in development and the initial release was named "The System" or "System" like all earlier versions. With version 7.5.1, the name "Mac OS" debuted on the boot screen, and the operating system was officially renamed to Mac OS in 1997 with version 7.6. The Mac OS 7 line was the longest-lasting major version of the Classic Mac OSes due to the troubled development of Copland, an operating system intended to be the successor to OS 7 before its cancellation and replacement with Mac OS 8. Development By 1988, the Macintosh had been on the market for four years. Some aspects of the operating system were beginning to fall behind ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1998 Software
1998 was designated as the ''International Year of the Ocean''. Events January * January 6 – The ''Lunar Prospector'' spacecraft is launched into orbit around the Moon, and later finds evidence for Lunar water, frozen water, in soil in permanently shadowed craters near the Moon's poles. * January 11 – Over 100 people are killed in the Sidi-Hamed massacre in Algeria. * January 12 – Nineteen European nations agree to forbid human cloning. * January 17 – The ''Drudge Report'' breaks the story about U.S. President Bill Clinton's alleged affair with Monica Lewinsky, which will lead to the Impeachment of Bill Clinton, House of Representatives' impeachment of him. February * February 3 – Cavalese cable car disaster (1998), Cavalese cable car disaster: A United States military pilot causes the deaths of 20 people near Trento, Italy, when his low-flying EA-6B Prowler severs the cable of a cable-car. * February 4 – The 5.9 February 1998 Afghanistan earthquake, Afghani ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Executor (software)
Executor is a software application that allows Motorola 68000-based classic Mac OS programs to be run on various x86-based operating systems. Executor was created by ARDI (Abacus Research and Development, Inc.). As of 2005, Executor development has been indefinitely postponed. As of 2008, it was published as open source software. Overview Executor was originally developed to run Mac programs on the NextStep platform. and other MC680x0-based Unix systems like SunStation. During that time, two other similar products also existed for Unix systems: Liken from Xcelerated Systems Inc, and Equal from Quorum Inc. Unlike true Macintosh emulators, Executor requires no startup ROM images or other Apple intellectual property. Executor, much like Wine for running Windows applications on Unix-like platforms, translates Macintosh Toolbox API calls and QuickDraw routines into equivalent Win32 or POSIX API calls. The MS-DOS version of Executor runs using the CWSDPMI protected mode DOS extender. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
VMac
VMAC is a block cipher-based message authentication code (MAC) algorithm using a universal hash proposed by Ted Krovetz and Wei Dai Wei Dai ( zh, c=戴维 or zh, c=戴伟) is a computer engineer known for contributions to cryptography and cryptocurrencies. He developed the Crypto++ cryptographic library, created the b-money cryptocurrency system, and co-proposed the VMAC ... in April 2007. The algorithm was designed for high performance backed by a formal analysis. VMAC is designed to have exceptional performance in software on 64-bit CPU architectures while still performing well on 32-bit architectures. Measured speeds are as fast as one-half CPU cycle per byte (cpb) on 64-bit architectures, under five cpb on desktop 32-bit processors, and around ten cpb on embedded 32-bit architectures. A closely related variant of VMAC that is optimized for 32-bit architectures is given by UMAC. Overview VMAC is a MAC in the style of Wegman and Carter. A fast "universal" hash functi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
PearPC
PearPC is a PowerPC platform emulator capable of running many PowerPC operating systems, including pre-Intel versions of Mac OS X, Darwin, and Linux on x86 hardware. It is released under the GNU General Public License (GPL). It can be used on Windows, Linux, FreeBSD and other systems based on POSIX- X11. The first official release was made on May 10, 2004. The software was often used to run early versions of OS X on Windows XP computers. History PearPC was released in May of 2004 by developers Sebastian Biallas and Stefan Weyergraf. Original releases were noted for being slow and unstable, but were still well received by the community. On July 6, 2004, Weyergraf was killed by a train, but development continued. The last current version of PearPC was 0.5.0, released on July 12, 2015. One of the reasons given for the development slowing down after 2005 was Apple's transition from PowerPC to x86 architecture. Features PearPC only runs on x86 systems including Intel and AMD such ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Memory Management Unit
A memory management unit (MMU), sometimes called paged memory management unit (PMMU), is a computer hardware unit that examines all references to computer memory, memory, and translates the memory addresses being referenced, known as virtual memory addresses, into physical addresses in main memory. In modern systems, programs generally have addresses that access the theoretical maximum memory of the computer architecture, 32 or 64 bits. The MMU maps the addresses from each program into separate areas in physical memory, which is generally much smaller than the theoretical maximum. This is possible because programs rarely use large amounts of memory at any one time. Most modern operating systems (OS) work in concert with an MMU to provide virtual memory (VM) support. The MMU tracks memory use in fixed-size blocks known as ''pages''. If a program refers to a location in a page that is not in physical memory, the MMU sends an interrupt to the operating system. The OS selects a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
