Apple ~ System and Utility Software

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On this page I have placed links to documentation, source code, and Demo DSK images in order for an interested user to discover the fun I have had in creating DOS 4.1, DOS 4.3, and DOS 4.5.  I will add more documentation and software links as I prepare the files.  Just click on the link and the file will download to your computer’s desktop.  The Demo and Tools Diskettes are bootable.  A TAR file should extract its content when you double-click on its image after the download completes.  Please contact me if you have any difficulty extracting a TAR file.  Software applications and utilities specific to DOS 4.3 are contained in the DOS 4.3 Source Code TAR file and software applications and utilities specific to DOS 4.5 are contained in the DOS 4.5 Source Code TAR file.  I have recently developed Client/Server software that will transfer a volume image up to 48 tracks, where each track may have 16 or 32 sectors, from one Apple computer or emulated computer to another Apple computer or emulated computer.  DOS 4.3 or DOS 4.5 may be utilized since volume phase is allowed in both versions of DOS.  The DOS 4.1 Disk Operating System Second Edition, the DOS 4.3 File Management System, and the DOS 4.5 File and Volume Disk Management System books may be purchased from the Lulu.com bookstore.

Excel Data Files

EDDX Circuit Drawings

DOS 4.1 Manual (46)

DOS 4.1 Source Code

DOS 4.1L Demo

DOS 4.1H Demo

DOS 4.3 File Management System Book Preview

DOS 4.3 Demo

DOS 4.3 Source Code

DOS 4.5 Source Code

DOS 4.5 File and Volume Disk Management System Book Preview

DOS 4.5L Demo

DOS 4.5H Demo