November 7, 2016 · Comments Off on John Brooks of ProDOS v2.4 on Open Apple

When the September issue of Juiced.GS shipped, it featured a fast-breaking story: an interview with John Brooks, who just that month had released ProDOS v2.4, the first update to the operating system since Apple's last official release on May 6, 1993. In the interview, which was recorded on Sunday, September 18, Brooks and Juiced.GS editor Ken Gagne discussed the impetus for this update; why it's called v2.4 and not v2.0.4; how this 8-bit operating system benefits 16-bit Apple II users; the potential for copyright infringement; the significance of its release in a year that also saw the debut of Windows 10 and iOS 10; and much, much more. The conversation ran a half-hour long and was published as a 4.5-page, 3,627-word transcript.

ProDOS 8

Like many Apple II users, the staff of Juiced.GS never throws anything away. Though the magazine is available in hardcopy only, it seemed a waste to let the original audio recording of Brooks' interview sit unheard in our vault. So, with Brooks' permission and in collaboration with Quinn Dunki and Mike Maginnis, an excerpt of that interview can now be heard in episode #64 of the Open Apple podcast:

Knowing that both Juiced.GS readers and Open Apple listeners alike would benefit from an easy-to-remember Web address at which to find Brooks' updated ProDOS, we registered this URL, which will always point to the latest ProDOS release at Call-A.P.P.L.E.:

Open Apple's excerpt represents ten minutes, or one-third, of the entire discussion between Brooks and Gagne. To learn more about Brooks' work and methodology with ProDOS, pick up the September 2016 issue of Juiced.GS!

September 28, 2016 · Comments Off on Enjoy Juiced.GS Volume 21, Issue 3 (September 2016)

Juiced.GS Volume 21, Issue 3 (Sep 2016)
This issue features Carrington Vanston's coverage of KansasFest 2016; an interview with John Brooks of ProDOS v2.4; behind the scenes with the programmers of Nox Archaist and Kaverns of Kfest; reviews of the 4play multiplayer expansion card and the Oregon Trail card game; and much, much more!

Check out this issue's index for full details, as well as links to online resources for more related content.

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September 27, 2016 · Comments Off on Volume 21, Issue 3 (September 2016)
Juiced.GS Volume 21, Issue 3 (September 2016)


2My Home PageA PEEK InsideKen GagneA look inside this month's issue.
3LettersKen GagneDavid Ciotti asks: how do humans print from Apple IIGS computers these days?
4-9Event coverageThat's Just How We RollCarrington VanstonIn his inimitable gonzo style, Carrington captures the highlights and essence of KansasFest 2016—from Sean Fahey's Garage Giveaway to Martin Haye's Ancient Legends to Quinn Dunki's MegaBeep and more.
10Behind the ScenesKreating Kaverns of KFestKevin Savetz, Quinn DunkiKevin Savetz documents how he created this year's winning HackFest entry: a scrolling game called Kaverns of KFest, his first Apple II assembly program.
11ReviewFast Draw on the Oregon TrailKate SzkotnickiA review of the Oregon Trail card game, published by Pressman Games and distributed by Target.
12-14ReviewFour can play with 4playMichael SternbergA review of Alex Lukacz's 4play joystick card, which enables multiplayer input and also serves as an adapter for digital controllers.
15-17Behind the ScenesNPC Pathfinding in Nox ArchaistMark LemmertA look at how non-playable characters (NPCs) traverse the world using the A* algorithm in Nox Archaist, an 8-bit tile-based RPG in development for the Apple II.
18-21,23MusinGSProDOS v2.4, at long lastKen GagneAn interview with John Brooks, CTO of Blue Shift Software and developer of ProDOS v2.4, an unofficial update to Apple's 8-bit operating system and its first update since 1993.
22DumplinGSGlobal InnovationKen GagneManila Gear releases Apple IIGS CGA Adapter and 4soniq-compatible NinjaTracker update; hardware developer a2heaven releases multiple products from Bulgaria; Call-A.P.P.L.E. releases Nibble Viewpoints book of Mike Harvey editorials; Jeremy Rand releases Bejeweled game for HackFest 2016; WozFest $04 is held, with WozFest 5 1/4" happening soon.
23A Word or IIBird is the WordKen GagneBeing present at KansasFest 2016 was great fun--but live-tweeting it made it even more fun.
24Wild ApplesKen GagneA contingent of KansasFest 2016 attendees made the journey to see Star Trek Beyond.

Issue Links


Daniel Kruszyna (krüe)'s GS/OS printer port driver that supports the AppSocket/JetDirect protocol.

Seven Hills Software's file translation system for the IIGS.

Andy McFadden's Windows utility for accessing, reading, and converting Apple II volumes and files.

A Java tool for creating, converting, and accessing Apple II disk images.

Event Coverage

Annual Apple II convention held at Rockhurst University in Kansas City, Missouri, USA.

Sean's Garage Giveaway
An annual event at KansasFest wherein Apple II users can procure free hardware, software, and periodicals, courtesy Sean Fahey and James Littlejohn.

Nibble Magazine
One of the leading Apple II magazines of 1980–1992, published by KansasFest 2016 keynote speaker Mike Harvey.

Ancient Legends
A free 8-bit tile-based role-playing game (RPG) from the developers of Lawless Legends.

Quinn Dunki's modified Apple IIc ROM.

4am's automatic software deprotecting tool.

Behind the Scenes: HackFest

Kaverns of Kfest
Kevin Savetz's winning Hackfest entry, a vertical-scrolling game, complete with source code.

The Internet Archive
Play Kaverns of Kfest in your Web browser.

Review: Oregon Trail

The Oregon Trail Card Game
A card game for 2–6 players ages 12 and up.

The exclusive distributor of Pressman's Oregon Trail card game.

Review: 4play joystick card

Alex Lukacz's four-player expansion card and joystick adapter.

Behind the Scenes: Nox A*

Nox Archaist
An 8-bit, tile-based RPG being developed by the 6502 Workshop.


ProDOS v2.4.1
John Brooks' unofficial update to Apple's 8-bit operating system.


Apple IIGS VGA Adapter
Manila Gear's external adapter to connect an Apple IIGS to a VGA monitor that supports 15kHz.

NinjaForce's music player, modified for eight-channel support.

An Apple II hardware developer with several affordable cloned and unique expansion cards.

Nibble Viewpoints
A collection of Mike Harvey's Nibble editorials, compiled by Call-A.P.P.L.E..

Jeremy Rand's Apple II adaptation of Bejeweled, the classic match-three puzzle game.

WOzFest 5¼
Sean McNamara's one-day gathering of Australia's Apple II users, being held in Wollstonecraft, New South Wales, on November 19, 2016.

A Word or II

KansasFest's official Twitter account, including hashtag #A2KFest.

September 21, 2015 · Comments Off on Enjoy Juiced.GS Volume 20, Issue 3 (September 2015)
Volume 20, Issue 3
At 28 pages, this is the largest issue of Juiced.GS ever, featuring coverage of the KansasFest and Apple II Festival France conventions; Carrington Vanston's HackFest journal; an interview with the editors of Scholastic Microzine; a breakdown of ProDOS file headers and fields; the penultimate chapter of Detective Pomme and Colonel Hexings' latest mystery; and much, much more!

Check out this issue's index for full details, as well as links to online resources for more related content.

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Get the latest Apple II news, reviews, interviews, and how-tos,
delivered right to your mailbox.

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September 20, 2015 · Comments Off on Volume 20, Issue 3 (September 2015)

Volume 20, Issue 3


2My Home PageAn Old Familiar SongKen GagneIt was a blast from the past when Giselle Marks brought her and late husband Stan's son Ian to his first KansasFest.
3-4RetrospectiveMartin Haye, Jeremy Rand, Kelvin Sherlock, Dennis Doms, Steve WeyhrichWhat was your favorite year to be an Apple II user? For Martin, 2010; Jeremy, 1995; Kelvin, 1991; Dennis, 1987; and Steve, 1981.
5-8Event coverageReturn to AppleQuinn DunkiWith Rebecca "Burger Becky" Heineman as keynote speaker, multiple platforms present, and the most attendees since 1996, this year's KansasFest was one for the record books.
9-11Behind the ScenesNoughts and CrisisCarrington Vanston, Quinn DunkiA live journal of how Carrington entered and won his first HackFest with Tic-Tac-Pro, a variation on tic-tac-toe.
12-15MusinGSScholastic SuccessKevin SavetzAn interview with Amy Kefauver and Lorri Hopping, editors of Scholastic Microzine, the educational disk available by subscription only to grade schools and elementary schools from 1983 to 1991.
16-18Event coverageApple II fort et vertAntoine VignauComplete coverage of all seven days of the first Apple II Festival France.
19-21Tech-torialFields of DreamsIvan DruckerAn analysis of the fields and headers used in ProDOS file systems and structures.
22-23,27Apple MysteriesConnecting the PlotsMartin HayeA visit to old relatives and the library—and a surprise delivery—produce more clues and dangers for Colonel Hexings and Detective Pomme.
24-26DumplinGSThe Riches of KansasFestKen GagneThe KansasFest releases of MegaMemoryTester, Mindshadow GS, Structris for iOS, What's Where in the Apple PDF, WOZPAK hardcover, UltimateMicro hardware, UnForkIt, a mouse driver, WeeGUI, and A2Sudoku; Opus now available from Juiced.GS; Uthernet II preorders begin; System 6.0.2 and 6.0.3 now available; Dino Eggs and Raster Blaster see remakes and ports; Leadlight Gamma ported from Eamon to Inform; Brent Hunter's floppy drive maintenance guide; Ewen Wannop updates BrkDown; Andy McFadden updates CiderPress; Steve Jobs documentary, movie, and opera; Apple-1 auction.
27Random NumbersA Room with a IIEric ShepherdMoving into a new house, Eric Shepherd has set aside one room specifically for his Apple II and III collection.
28Wild ApplesLoren DamewoodGreetings from KansasFest 2015

Issue Links

Event Coverage: KansasFest 2015

An annual Apple II convention held at Rockhurst University in in Kansas City, Missouri.

RCR Episode #105
The Retro Computing Roundtable podcast hosted a dozen podcasters in a single episode recorded at KansasFest 2015.

HackFest 2015
A YouTube video playlist of all nine of this year's HackFest programming competition entries.

Author Quinn Dunki's programming blog.

Behind the Scenes: Tic-Tac-Pro

A repository of HackFest entries, including Carrington Vanston's winning Tic-Tac-Pro game, a variation on tic-tac-toe.

MusinGS: Scholastic Microzine

Amy Kefauver
Homepage for Amy Kefauver, who worked at Microzine publisher Scholastic as an editor 1985–1988 and editorial director 1988–1990.

Lorri Hopping
Homepage for Lorri Hopping, editor at Scholastic Microzine.

A retrocomputing podcast about the Atari 8-bit line of personal computers. The audio of Kefauver's and Hopping's interviews will be a future episode.

Event Coverage: Apple II Festival France

Apple II Festival France
The inaugural seven-day conference for European Apple II users, held at Castera-Verduzan in Gers.

The Zapping Zone
Chris Marker's interactive multimedia art of the late 1980s and early 1990s, made with seven Apple IIgs and thirteen monitors.


The world's only print publication dedicated to the Apple II, with subscriptions now available for calendar year 2016.

Geoff Weiss's Apple IIGS RAM test utility.

Dragon Words
Kelvin Sherlock's CDA to play Rebecca Heineman's Dragon Wars.

An emulator-ready disk image of the Apple IIGS version of Rebecca Heineman's Mindshadow game.

Martin Haye's public domain variation on Tetris, coming soon to iOS.

WOZPAK Special Edition
Steve Wozniak's original Apple-1 and Apple II technical notes, now available in hardcover; an e-book edition is coming soon.

What's Where in the Apple
Robert Tripp's technical resource for the Apple II, coming soon in paperback, hardcover, and e-book editions.

Developers and vendors of no-slot clocks, RAM cards, TransWarp clones, and much more.

Speaker/headphone adapter for Apple II
Charles Mangin's adapter to add a headphone jack to Apple II models that do not natively have one.

Ivan Drucker's ProDOS 8 program that will convert extended (forked) files stored on a ProDOS volume, such as those created by GS/OS or classic Mac OS, into one or two standard files, allowing you to happily work with them in ProDOS 8.

Quinn Dunki's open-source mouse driver.

Quinn Dunki's open-source 8-bit GUI library.

Jeremy Rand's HackFest 2015 game.

Opus ][
The complete products and source code of The Byte Works, now available from Juiced.GS publisher Gamebits.

Uthernet II
A new model of Ethernet networking card for the Apple II, from Glenn Jones of a2RetroSystems.

System 6.0.3
An unofficial update to Apple Inc.'s last official operating system for the Apple IIGS.

Dino Eggs Rebirth
David Schroeder's sequel to his classic Apple II platform game.

Raster Blaster Reloaded
Wayne Johnson's unofficial Mac/Windows/Linux/Android port of Bill Budge's classic pinball game.

Leadlight Gamma
Wade Clarke's Inform version of his award-winning Eamon survival-horror text adventure.

Ken Gagne's podcast interview with Wade Clarke of Leadlight Gamma.

Cleaning an Apple Platinum 5.25" Floppy Drive (A9M0107)
Brent Hunter's guide to cleaning an Apple II floppy drive.

Ewen Wannop's point-and-click desktop disassembler for both 8- and 16-bit files.

Andy McFadden's open-source Windows utility for working with Apple II volumes, disk images, and files.

Steve Jobs: The Man in the Machine
Magnolia Pictures' documentary of Apple's co-founder, released September 5.

Steve Jobs
A dramatization of Steve Jobs' life, starring Michael Fassbender, based on the biography by Walter Isaacson, and with a screenplay by Aaron Sorkin; releases October 9.

The (R)evolution of Steve Jobs
An opera of Steve Jobs' life, debuting in 2017 at the San Francisco Opera.

Apple-1 auction
A working Apple-1 auctioned September 21, 2015, at Bonhams, as demonstrated by Corey Cohen of MARCH.