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MorphOS Software
MorphOS is an AmigaOS-like operating system designed for Power and PowerPC based computers. The core, based on the Quark microkernel, is proprietary, although several libraries and other parts are open source, such as the Ambient desktop. The project began in 1999 and it was produced for the Pegasos computer, as well as PowerUP accelerator equipped Amiga computers, and a series of Freescale development boards that use the Genesi firmware, including the Efika and mobileGT. Since then MorphOS has been ported to Apple's Mac mini, eMac, Power Mac G4 and limited support for Power Mac G5. It is binary compatible with software written for Motorola 68k-based Amiga computers. History The project began in 1999, based on the Quark microkernel. The earliest versions of MorphOS ran only via PPC accelerator cards on the Amiga computers, and required portions of AmigaOS to fully function. A collaborative effort between the companies bPlan (of which the lead MorphOS developer is a part ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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AmigaOS
AmigaOS is a family of proprietary native operating systems of the Amiga and AmigaOne personal computers. It was developed first by Commodore International and introduced with the launch of the first Amiga, the Amiga 1000, in 1985. Early versions of AmigaOS required the Motorola Motorola 68000 family, 68000 series of 16-bit and 32-bit microprocessors. Later versions, after Commodore's demise, were developed by Haage & Partner (AmigaOS 3.5 and 3.9) and then Hyperion Entertainment (AmigaOS 4.0-4.1). A PowerPC microprocessor is required for the most recent AmigaOS 4-release. AmigaOS is a single-user operating system based on a preemptive multitasking kernel (operating system), kernel, called Exec (Amiga), Exec. It includes an abstraction of the Amiga's hardware, a disk operating system called ''AmigaDOS'', a windowing system Application programming interface, API called Intuition (Amiga), ''Intuition'', and a desktop environment and file manager called Workbench (AmigaOS), ''Workbenc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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Efika
Efika is a line of power efficient ARM architecture and Power ISA based computers manufactured by Genesi. In Esperanto ''efika'' means "efficacious, effective, or efficient". EfikaPPC The EfikaPPC, sometimes also referred to as EFIKA 5200B, was based on a 400 MHz Freescale MPC5200B System-on-a-Chip and includes 44-pin 2.5" IDE, USB, serial port, stereo audio in/out, 100 Mbit/s Ethernet, 33/66 MHz PCI port and 128 MB DDR RAM. EFIKA uses an Open Firmware based CHRP compliant firmware with a special x86/BIOS emulator providing support for standard graphics cards on an AGP riser slot. The motherboard had a non-standard form factor, 118 mm × 153 mm × 38 mm small. Due to its small size, Restriction of Hazardous Substances Directive (RoHS) compliance and energy efficient nature (drawing less than 20 Watts with a harddrive and a graphics card, typically less than 10 Watts during most usage scenarios), the Efika was marketed as environmentally friendly. An E ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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Microkernel
In computer science, a microkernel (often abbreviated as μ-kernel) is the near-minimum amount of software that can provide the mechanisms needed to implement an operating system (OS). These mechanisms include low-level address space management, thread (computing), thread management, and inter-process communication (IPC). If the hardware provides multiple Protection ring, rings or CPU modes, the microkernel may be the only software executing at the most privileged level, which is generally referred to as kernel mode, supervisor or kernel mode. Traditional operating system functions, such as device drivers, protocol stacks and file systems, are typically removed from the microkernel itself and are instead run in user space. In terms of the source code size, microkernels are often smaller than monolithic kernels. The MINIX 3 microkernel, for example, has only approximately 12,000 lines of code. History Microkernels trace their roots back to Danish computer pioneer Per Brinch ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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Quark (kernel)
In computing, Quark is an operating system kernel used in MorphOS. It is a microkernel designed to run fully virtualized computers, called ''boxes'' (see sandbox). , only one ''box'' is available, the ''ABox'', that lets users run extant AmigaOS software compiled for Motorola 68000 series (MC680x0 or 68k) and PowerPC central processing units (CPUs). Design goals The Quark microkernel is not a member of the L4 microkernel family, but borrows concepts from it, including: the ''clan'' (group of tasks), ID concept, and recursive address mapping. Quark also has an asynchronous/synchronous message interface similar to Amiga's Exec kernel but adapted to an environment with memory protection. Other Quark features include: * High super/usermode switch speed * Low interrupt latency * Interrupt threads (IntThreads) and Int P-code abstraction * Symmetric multiprocessing (SMP) * Models task/thread and clan/chief * Resource tracking * Virtual memory (optional) * Distributed computing * N ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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PowerPC
PowerPC (with the backronym Performance Optimization With Enhanced RISC – Performance Computing, sometimes abbreviated as PPC) is a reduced instruction set computer (RISC) instruction set architecture (ISA) created by the 1991 Apple Inc., Apple–IBM–Motorola alliance, known as AIM alliance, AIM. PowerPC, as an evolving instruction set, has been named Power ISA since 2006, while the old name lives on as a trademark for some implementations of Power Architecture–based processors. Originally intended for personal computers, the architecture is well known for being used by Apple's desktop and laptop lines from 1994 until 2006, and in several videogame consoles including Microsoft's Xbox 360, Sony's PlayStation 3, and Nintendo's GameCube, Wii, and Wii U. PowerPC was also used for the Curiosity (rover), Curiosity and Perseverance (rover), Perseverance rovers on Mars and a variety of satellites. It has since become a niche architecture for personal computers, particularly with A ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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Power ISA
Power ISA is a reduced instruction set computer (RISC) instruction set architecture (ISA) currently developed by the OpenPOWER Foundation, led by IBM. It was originally developed by IBM and the now-defunct Power.org industry group. Power ISA is an evolution of the PowerPC ISA, created by the mergers of the core PowerPC ISA and the optional Book E for embedded applications. The merger of these two components in 2006 was led by Power.org founders IBM and Freescale Semiconductor. Prior to version 3.0, the ISA is divided into several categories. Processors implement a set of these categories as required for their task. Different classes of processors are required to implement certain categories, for example a server-class processor includes the categories: ''Base'', ''Server'', ''Floating-Point'', ''64-Bit'', etc. All processors implement the Base category. Power ISA is a RISC load/store architecture. It has multiple sets of registers: * ''32'' × 32-bit or 64-bit general- ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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Operating System
An operating system (OS) is system software that manages computer hardware and software resources, and provides common daemon (computing), services for computer programs. Time-sharing operating systems scheduler (computing), schedule tasks for efficient use of the system and may also include accounting software for cost allocation of Scheduling (computing), processor time, mass storage, peripherals, and other resources. For hardware functions such as input and output and memory allocation, the operating system acts as an intermediary between programs and the computer hardware, although the application code is usually executed directly by the hardware and frequently makes system calls to an OS function or is interrupted by it. Operating systems are found on many devices that contain a computerfrom cellular phones and video game consoles to web servers and supercomputers. , Android (operating system), Android is the most popular operating system with a 46% market share, followed ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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AmigaOne
AmigaOne is a series of computers intended to run AmigaOS 4 developed by Hyperion Entertainment, as a successor to the Amiga series by Commodore International. Unlike the original Amiga computers which used Motorola 68k processors, the AmigaOne line uses PowerPC processors. Earlier models were produced by Eyetech; in September 2009, Hyperion secured an exclusive licence for the AmigaOne name and subsequently new AmigaOne computers were released by A-Eon Technology and Acube Systems. History AmigaOne by Eyetech (2000–05) Originally in 2000, AmigaOne was the name of a project for new computer hardware to run the Amiga Digital Environment (DE), later plans replaced by AmigaOS 4. Initially it was managed by Eyetech and designed by the German company Escena GmbH. The AmigaOne motherboard was to be available in two models, the AmigaOne-1200 and the AmigaOne-4000 as expansions for the Amiga 1200 and Amiga 4000 computers. This would probably not have been actually possible. T ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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Sam460ex
Sam460ex is a line of modular motherboards produced by the Italian company ACube Systems Srl. The machine was released in October 2010 and can run AmigaOS 4, MorphOS, AROS Research Operating System, AROS or Debian GNU/Linux (CruxPPC at first, and then Debian Squeeze or Ubuntu ). The Sam460ex made its debut at the Vintage Computer Festival at Bletchley Park in the UK on 19 June 2010, where it was demonstrated to the public running AmigaOS 4.1 along with the Timberwolf web browser, a port of the Mozilla Firefox for the AmigaOS 4. Its hardware features were also showcased, with its SIM card slot and aerial, its ability to boot AmigaOS from SD card. In September 2011, Acube Systems introduced AmigaOne 500 based on Sam460ex mainboard. Versions Sam460ex * FlexATX form factor (21.6 × 17 cm) * AMCC 460ex SoC – passively cooled PowerPC 400#AMCC 460, PowerPC 440 core up to 1.15 GHz and including a double precision floating point unit (FPU) * Cache L1/L2: 32KB/256KB * max 2 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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Power Mac G5
The Power Mac G5 is a series of personal computers designed, manufactured, and sold by Apple Computer, Inc. from 2003 to 2006 as part of the Power Mac series. When introduced, it was the most powerful computer in Apple's Macintosh lineup, and was marketed by the company as the world's first 64-bit desktop computer. It was also the first desktop computer from Apple to use an anodized aluminum alloy enclosure, and one of only three computers in Apple's lineup to utilize the PowerPC 970 CPU, the others being the iMac G5 and the Xserve G5. Three generations of Power Mac G5 were released before it was discontinued as part of the Mac transition to Intel processors, making way for its replacement, the Mac Pro. The Mac Pro retained a variation of the G5's enclosure design for seven more years, making it among the longest-lived designs in Apple's history. Introduction Officially launched as part of Steve Jobs' keynote presentation at the Worldwide Developers Conference in Ju ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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IBook G4
iBook is a line of laptop computers designed, manufactured, and sold by Apple Computer from 1999 to 2006. The line targeted entry-level, consumer and education markets, with lower specifications and prices than the PowerBook, Apple's higher-end line of laptop computers. It was the first mass consumer product to offer Wi-Fi network connectivity, which was then branded by Apple as AirPort. The iBook had three different designs during its lifetime. The first, known as the "Clamshell", was inspired by the design of Apple's popular iMac line at the time. It was a significant departure from previous portable computer designs due to its shape, bright colors, incorporation of a handle into the casing, lack of a display closing latch, lack of a hinged cover over the external ports and built-in wireless networking. Two years later, the second generation abandoned the original Computer form factor, form factor in favor of a more conventional, rectangular design. In October 2003, the third ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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PowerBook G4
The PowerBook G4 is a series of notebook computers manufactured, marketed, and sold by Apple Computer between 2001 and 2006 as part of its PowerBook line of notebooks. The PowerBook G4 runs on the RISC-based PowerPC G4 processor, designed by the AIM (Apple/IBM/Motorola) development alliance and initially produced by Motorola. It was built later by Freescale, after Motorola spun off its semiconductor business under that name in 2004. The PowerBook G4 has had two different designs: one with a titanium body with a translucent black keyboard and a 15-inch screen; and another in an aluminum body with an aluminum-colored keyboard, in 12-inch, 15-inch, and 17-inch sizes. Between 2001 and 2003, Apple produced the titanium PowerBook G4; between 2003 and 2006, the aluminum models were produced. Both models were hailed for their modern design, long battery life, and processing power. When the aluminum PowerBook G4s were first released in January 2003, 12-inch and 17-inch models were intro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |