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O Apple IIGS, quinto modelo dos microcomputadores Apple II, foi o membro mais poderoso desta série produzida pela Apple Computer. Na época do seu lançamento, apresentava gráficos coloridos surpreendentes (com até 4096 cores) e som estéreo em 16 vozes, numa resposta voltada aos concorrentes diretos, Amiga 1000 e Atari 520ST. [ 1]
- Hardware
- Development
- Release
- Software Features
- Reception
- Technical Specifications
- Revision History
- International Versions
- Gus
- Legacy
The Apple IIGS made significant improvements over the Apple IIe and Apple IIc. It emulates its predecessors via a custom chip called the Mega II and uses the then-new WDC 65C816 16-bit microprocessor. The processor runs at 2.8 MHz, which is faster than the 8-bit processors used in the earlier Apple II models. The 65C816 allows the IIGS to address c...
Steve Wozniak said in January 1985 that Apple was investigating the 65816, and that an 8 MHz version would "beat the pants off a 68000 in most applications", but any product using it would have to be compatible with the Apple II. Rumors spread about his work on an "Apple IIx". The IIx was said to have a 16-bit CPU, one megabyte of RAM, and better g...
Limited Edition
As part of a commemorative celebration marking the 10th anniversary of the Apple II series' development, as well as Apple Computer itself celebrating the same anniversary, a special limited edition was introduced at product launch. The first 50,000 Apple IIGSs manufactured had a reproduced copy of Wozniak's signature ("Woz") at the front right corner of the case, with a dotted line and the phrase "Limited Edition" printed just below it. Owners of the Limited Edition, after mailing in their Ap...
Upgrading an Apple IIe
Upon its release in September 1986, Apple announced it would be making a kit that would upgrade an Apple IIe to a IIGS available for purchase. This followed an Apple practice of making logic board upgrades available that dated from the earliest days of the Apple II until Steve Jobs' return to Apple in 1997. The IIe-to-IIGS upgrade replaced the IIe motherboard with a 16-bit IIGS motherboard. Users would take their Apple IIe machines into an authorized Apple dealership, where the IIe motherboar...
Software that runs on the Apple IIGS can be divided into two major categories: 8-bit software compatible with earlier Apple II systems such as the IIe and IIc, and 16-bit IIGS software, which takes advantage of its advanced features, including a near-clone of the Macintosh graphical user interface.
After previewing the computer, BYTE stated in October 1986 that "The Apple IIGS designers' achievements are remarkable, but the burden of the classic Apple II architecture, now as venerable (and outdated) as COBOL and batch processing, may have weighed them down and denied them any technological leaps beyond an exercise in miniaturization." The mag...
Microprocessor
1. WDC 65C816running at 2.8 MHz 2. 8-bit data bus, with selectable 8- or 16-bit registers 3. 24-bit addressing, using a 16-bit address bus and a multiplexed bank address
Memory
1. 1 MBof RAM built-in (256 KB in original) (expandable to 8 MB) 2. 256 KB of ROM built-in (128 KB in original)
Audio
1. Ensoniq 5503 digital oscillator chip 1.1. 8-bit audio resolution 1.2. 64 KB of dedicated sound RAM 1.3. 32 oscillator channels (15 voices when paired) 1.4. Support for eight independent stereo speaker channels
While in production between September 1986 and December 1992, the Apple IIGS remained relatively unchanged from its inception. During those years, however, Apple did produce some maintenance updates to the system which mainly comprised two new ROM-based updates and a revamped motherboard. It is rumored that several prototypes that greatly enhanced ...
Like the Apple IIe and Apple IIc built-in keyboards before it, the detached IIGS keyboard differs depending on what region of the world it was sold in, with extra local language characters and symbols printed on certain keycaps (e.g. French accented characters on the Canadian IIGS keyboard such as "à", "é", "ç", etc., or the British Pound "£" symbo...
Apple designed the Apple IIe Card to transit Apple IIe customers to the Macintosh LC, particularly schools who had a large investment in Apple II software. While Apple discussed creating an LC plug-in IIGS card, they felt that the cost of selling it would be as much as an entire LC and abandoned it. However, the educational community had a substant...
The Apple Desktop Bus, which for a long time was the standard for most input peripherals for the Macintosh, first appeared on the IIGS. In addition, the other standardized ports and addition of SCSI set a benchmark which allowed Apple, for the first time, to consolidate their peripheral offerings across both the Apple II and Macintosh product lines...
Apple IIGS O Apple IIgs foi o único computador Apple II a ser 16-bit. O Apple IIGS foi lançado em 15 de setembro de 1986. Ele usa o 65C816, um verdadeiro microprocessador de 16 bits, operando a 2,8 MHz com endereçamento de 24 bits, permitindo a expansão de até 8 MB de RAM.
Apple IIGS with monitor, keyboard, mouse, joystick, 3.5" floppy disk drive and 5.25" floppy disk drive. The Apple IIGS, released on September 15, 1986, is the penultimate and most advanced model in the Apple II
GS/OS is an operating system developed by Apple Computer for its Apple IIGS personal computer. It provides facilities for accessing the file system , controlling input/output devices, loading and running program files, and a system allowing programs to handle interrupts and signals.
O Apple IIGS, quinto modelo dos microcomputadores Apple II, foi o membro mais poderoso desta série produzida pela Apple Computer. Na época do seu lançamento, apresentava gráficos coloridos surpreendentes e som estéreo em 16 vozes, numa resposta voltada aos concorrentes diretos, Amiga 1000 e Atari 520ST.
The Apple IIGS, the fifth model inception of the Apple II, was the most powerful member of the Apple II series of personal computers made by Apple Computer.
