Author: John Brooks

Apple ][ developer since 1979. Professional game developer since 1987. Cofounded Blue Shift, Inc. in San Jose, CA. in 1995, a company which develops video games, embedded systems, and provides engineering consulting services.

Announcing ProDOS 2.4.3 for all Apple II computers

John Brooks
Posted by: John Brooks Date: December 30, 2023
10 Likes 6639 Views

ProDOS 2.4.3 is a minor release with bug fixes and updates. It replaces ProDOS 2.4, ProDOS 2.4.1 and ProDOS 2.4.2.

Announcing ProDOS 2.4.2 for all Apple II computers

John Brooks
Posted by: John Brooks Date: January 18, 2018
0 Likes 1674 Views

      ProDOS 2.4.2 is a minor release with bug fixes and updates. It replaces ProDOS 2.4 and ProDOS 2.4.1.   Bugs fixed:  1. If a directory with more than 255 files was used, and then a different disk was used, a Bad Dir Error $51 was reported.  2. Bitsy Bye was not compatible with the Appletalk Workstation card.  3. Bitsy Bye was not compatible with the  Mac LC Apple IIe card.   Updates:  1. Thunderclock driver is updated for years 2018 – 2023…

Announcing ProDOS 8 System Disk 4.4 with ProDOS 2.4.1

John Brooks
Posted by: John Brooks Date: September 26, 2016
0 Likes 690 Views

System Disk 4.4 has been released for Apple //e and newer computers. The following programs are included: ProDOS 2.4.1 operating system. Bitsy Bye program launcher from ProDOS 2.4.1. Launcher.System 4.4, now updated to restore Bitsy Bye v2.4.1 to Language Card Bank 2 on exit. SysUtils.System 3.1 from System Disk 4.0.2. FastCopy.System version 1.0.1 from System Disk 4.0.2. Bitsy Boot 1.0 from ProDOS 2.4.1. Basic.System 1.6 from ProDOS 2.4.1 The Make.No.P8 utility from ProDOS 2.4.1 which saves 1KB from ProDOS by removing GS/OS…

Announcing ProDOS 2.4.1 for all Apple II and compatible computers

John Brooks
Posted by: John Brooks Date: September 19, 2016
0 Likes 1068 Views

New version: ProDOS 2.4.2 is available here. ProDOS 2.4.1 adds several improvements and bug fixes to ProDOS 2.4. Includes ROM ID detection for many Apple II clones, and workarounds for clone firmware bugs. Franklin Ace Laser 128 Unitron Pravetz Updates MiniBas to version 1.2. Fixes a bug when launching ProDOS 2.4 from GS/OS using Closed-Apple to activate Bitsy Bye. Fixes a ROM bug in un-enhanced Apple //e when quitting to Bitsy Bye with 80-column mode enabled. Files on disk have been organized for…

Announcing ProDOS 2.4 for all Apple II computers

John Brooks
Posted by: John Brooks Date: September 15, 2016
0 Likes 2619 Views

    New version: ProDOS 2.4.2 is available here. Today, the 30-year anniversary of the Apple IIGS, a new version of the ProDOS operating system has been released. ProDOS 2.4 adds new features for all Apple II computers, including the 1977 Integer ROM Apple II. Apple IIGS features of ProDOS 2.4 Preserves GS/OS dormant state – Now multiple ProDOS games or programs can be booted and still return to GS/OS. New ‘Bitsy Boot’ utility allows programs to quit to the 8-bit…