Editing Apple IIGS (section)

{{Short description|1986 personal computer}}
{{Multiple issues|{{Original research|date=January 2019}}
{{More citations needed|date=March 2023}}}}
{{Use mdy dates|date=October 2013}}
{{Infobox computing device
| Image = Apple IIGS with peripherals.jpg
| manufacturer = [[Apple Inc.|Apple Computer]]
| Introduced = {{Start date and age|1986|09|15}}
| MSRP = {{US$|999|1986|round=-1}} without monitor
| CPU = [[WDC 65C816|65C816]] @ 2.8 MHz
| OS = [[ProDOS]]<br />[[GS/OS]]<br />[[GNO/ME]]
| RAM = 256 KB, 512 KB, 1 MB (expandable to 8&nbsp;MB)
| RAMtype = 
| Graphics = 320×200 (4  bit)<br> 640×200 (2 bpp)<br>Palette of 12 bits per color
| Sound = [[Ensoniq]] ES5503 8-bit [[wavetable synthesis]] chip,<br />32 channels
| Discontinued = {{End date and age|1992|12|04}}
| logo = Apple IIGS logo.svg
}}

The '''Apple IIGS''' (styled as '''II{{sc|GS}}''') is a 16-bit personal computer produced by [[Apple Inc.|Apple Computer]] beginning in September 1986. It is the fifth and most powerful model of the [[Apple II]] family. The "GS" in the name stands for "Graphics and Sound", referring to its enhanced multimedia hardware, especially the state-of-the-art audio.<ref>{{Cite book|url=https://books.google.com/books?id=P2dClS4LdPQC&pg=PA317|title=Electronic and computer music|isbn=9780195144840|last1=Manning|first1=Peter|year=2004|page=317|publisher=Oxford University Press |access-date=January 21, 2022|archive-date=January 21, 2022|archive-url=https://web.archive.org/web/20220121021738/https://books.google.com/books?id=P2dClS4LdPQC&pg=PA317|url-status=live}}</ref> It is compatible with earlier Apple II models, and Apple initially sold a kit for converting an [[Apple IIe]] into a IIGS.

The system is a radical departure otherwise, with a [[WDC 65C816]] microprocessor, 256 KB or 1 MB of [[random-access memory]] expandable to 8 MB, resolution and color similar to the [[Amiga]] and [[Atari ST]], and a 32 channel [[Ensoniq]] [[wavetable synthesis]] chip. Bundled with a [[computer mouse|mouse]], it is the first computer from Apple with a color [[graphical user interface]] (color was introduced on the [[Macintosh II]] six months later) and the [[Apple Desktop Bus]] interface for keyboards, mice, and other input devices.

The IIGS blurred the lines between the Apple II and Macintosh. After releasing the IIGS, Apple chose to focus on the Mac and no new Apple IIGS models were released. The standard RAM was doubled to 512 KB in 1988, then to 1 MB in 1989, and there were two firmware updates. Apple ceased IIGS production on December 4, 1992.