Editing Commodore 64 (section)

=== Commodore 128 ===
{{Main|Commodore 128}}
Two designers at Commodore, Fred Bowen and [[Bil Herd]], were determined to rectify the problems of the [[Commodore Plus/4|Plus/4]]. They intended that the eventual successors to the C64—the [[Commodore 128]] and 128D computers (1985)—were to build upon the C64, avoiding the Plus/4's flaws.<ref name="kirps.com">{{cite web|url=http://www.kirps.com/web/main/_blog/all/in-memory-of-the-commodore-c128.shtml|title=In Memory Of The Commodore C128 – Popular Science and Technology Blog by Jos Kirps|access-date=November 17, 2014|url-status=dead|archive-url=https://web.archive.org/web/20141129021635/http://www.kirps.com/web/main/_blog/all/in-memory-of-the-commodore-c128.shtml|archive-date=November 29, 2014}}</ref><ref name="InfoWorld Jan 1985">{{cite magazine|last=Mace|first=Scott|date=January 28, 1985|title=Commodore Shows New 128|url=https://books.google.com/books?id=6i4EAAAAMBAJ&pg=PA19|magazine=InfoWorld|location=Menlo Park, CA|publisher=Popular Computing|volume=7|issue=4|pages=19–20|issn=0199-6649}}</ref> The successors had many improvements such as a BASIC with graphics and sound commands (like almost all home computers not made by Commodore<ref>{{cite web |url=https://colorcomputerarchive.com/repo/Documents/Manuals/Hardware/Getting%20Started%20With%20Extended%20Color%20Basic%20(Tandy).pdf| title= Tandy Color BASIC Manual |archive-url=https://web.archive.org/web/20201030231618/https://colorcomputerarchive.com/repo/Documents/Manuals/Hardware/Getting%20Started%20With%20Extended%20Color%20Basic%20%28Tandy%29.pdf |archive-date=October 30, 2020 |url-status=live }}</ref><ref>{{cite web| url=https://www.landsnail.com/a2ref.htm|title=List of Applesoft BASIC commands}}</ref><ref>{{cite web|url=https://worldofspectrum.org/ZXBasicManual/| title=Sinclair ZX Spectrum BASIC Programming Manual}}</ref>), 80-column display ability, and full [[CP/M]] compatibility. The decision to make the [[Commodore 128]] [[plug compatible]] with the C64 was made quietly by Bowen and Herd, software and hardware designers respectively, without the knowledge or approval by the management in the post [[Jack Tramiel]] era. The designers were careful not to reveal their decision until the project was too far along to be challenged or changed and still make the impending Consumer Electronics Show (CES) in Las Vegas.{{r|kirps.com}} Upon learning that the C128 was designed to be compatible with the C64, Commodore's marketing department independently announced that the C128 would be 100% compatible with the C64, thereby raising the bar for C64 support. In a case of [[malicious compliance]], the 128 design was altered to include a separate "64 mode" using a complete C64 environment to try to ensure total compatibility.{{citation needed|date=February 2015}}