Apple IIGS: Difference between revisions
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| os = GS/OS, ProDOS 16, ProDOS 8 | | os = GS/OS, ProDOS 16, ProDOS 8 | ||
| predecessor = [[Apple IIe]] | | predecessor = [[Apple IIe]] | ||
| successor = | | successor = | ||
| codename = Cortland | | codename = Cortland | ||
| model = A2S6000 (original), A2S6001 (ROM 01), A2S6003 (ROM 03) | | model = A2S6000 (original), A2S6001 (ROM 01), A2S6003 (ROM 03) | ||
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The '''Apple IIGS''' is a 16-bit personal computer introduced by Apple Computer, Inc. in September 1986 as the most advanced and final model in the Apple II series. It combined backward compatibility with earlier Apple II software and hardware with enhanced graphics and sound, targeting both education and home users. | The '''Apple IIGS''' is a 16-bit personal computer introduced by Apple Computer, Inc. in September 1986 as the most advanced and final model in the Apple II series. It combined backward compatibility with earlier Apple II software and hardware with enhanced graphics and sound, targeting both education and home users. | ||
== | == Architecture and Processor == | ||
The IIGS was built around the '''Western Design Center 65C816''' microprocessor, a 16-bit extension of the classic 6502 architecture. Key features include: | The IIGS was built around the '''Western Design Center 65C816''' microprocessor, a 16-bit extension of the classic 6502 architecture. Key features include: | ||
* '''CPU:''' WDC 65C816 running at 2.8 MHz (software-switchable to 1 MHz for compatibility) | * '''CPU:''' WDC 65C816 running at 2.8 MHz (software-switchable to 1 MHz for compatibility) | ||
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The 65C816 enabled the IIGS to run new, more powerful applications while maintaining support for the extensive Apple II software library. | The 65C816 enabled the IIGS to run new, more powerful applications while maintaining support for the extensive Apple II software library. | ||
== | == Memory and Storage == | ||
The standard Apple IIGS shipped with '''256 KB RAM''', expandable via memory expansion cards to a maximum of '''8 MB'''. ROM versions evolved over time: | The standard Apple IIGS shipped with '''256 KB RAM''', expandable via memory expansion cards to a maximum of '''8 MB'''. ROM versions evolved over time: | ||
* '''ROM 00/01:''' 128 KB ROM | * '''ROM 00/01:''' 128 KB ROM | ||
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* Support for ProDOS and GS/OS file systems | * Support for ProDOS and GS/OS file systems | ||
== | == Display and Graphics == | ||
The IIGS introduced advanced graphics capabilities for the Apple II line, powered by custom VGC (Video Graphics Controller) hardware: | The IIGS introduced advanced graphics capabilities for the Apple II line, powered by custom VGC (Video Graphics Controller) hardware: | ||
* '''Resolution:''' 320×200 (up to 256 colours), 640×200 (up to 16 colours) | * '''Resolution:''' 320×200 (up to 256 colours), 640×200 (up to 16 colours) | ||
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These features enabled the IIGS to display rich, colourful graphics far beyond earlier Apple II models. | These features enabled the IIGS to display rich, colourful graphics far beyond earlier Apple II models. | ||
== | == Sound Capabilities == | ||
A major innovation was the inclusion of the '''Ensoniq 5503 Digital Oscillator Chip (DOC)''', a professional-grade synthesiser chip: | A major innovation was the inclusion of the '''Ensoniq 5503 Digital Oscillator Chip (DOC)''', a professional-grade synthesiser chip: | ||
* '''32 independent digital oscillators''' | * '''32 independent digital oscillators''' | ||
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The Ensoniq DOC gave the IIGS sound capabilities comparable to contemporary synthesiser keyboards and workstations, making it a favourite for music and educational software. | The Ensoniq DOC gave the IIGS sound capabilities comparable to contemporary synthesiser keyboards and workstations, making it a favourite for music and educational software. | ||
== | == Input/Output and Expansion == | ||
The IIGS retained the Apple II’s renowned expandability: | The IIGS retained the Apple II’s renowned expandability: | ||
* '''Seven Apple II-style internal slots''' for cards (including SCSI, memory, networking, and accelerators) | * '''Seven Apple II-style internal slots''' for cards (including SCSI, memory, networking, and accelerators) | ||
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This flexibility allowed the IIGS to serve in classrooms, homes, and professional environments. | This flexibility allowed the IIGS to serve in classrooms, homes, and professional environments. | ||
== | == Gallery == | ||
<gallery mode="packed" heights="200"> | <gallery mode="packed" heights="200"> | ||
File:Apple IIgs 001 (white background).jpg|Apple IIGS (front view) | File:Apple IIgs 001 (white background).jpg|Apple IIGS (front view) | ||
File:Apple IIgs 004.jpg|Apple IIGS Logic Board & Power Supply | File:Apple IIgs 004.jpg|Apple IIGS Logic Board & Power Supply | ||
File:Apple IIGS with peripherals.jpg|Apple IIGS with peripherals | File:Apple IIGS with peripherals.jpg|Apple IIGS with peripherals | ||
</gallery> | </gallery>{{Navbox-AppleVintage}} | ||
{{Navbox-AppleVintage}} | |||
<templatestyles src="Template:StyledTable/styles.css" /> | <templatestyles src="Template:StyledTable/styles.css" /> | ||
[[Category:Apple Vintage Computers]] | |||