Reconstructing an out of print Commodore 4040 disk drive book #Commodore #VintageComputing #RetroComputing #Publishing
The Commodore 4040 is a dual-drive 5¼” floppy disk subsystem for Commodore International computers. It uses a wide-case form, and uses the parallel IEEE-488 interface..
Back in 1988, Hilaire Gagne wrote a comprehensive book about the Commodore 4040 and the beginnings of Commodore DOS titled Anatomy of the 4040 Disk Drive. The book covers file management, data management disk management, file organization, advanced disk programming, hardware and software interfacing, RAM and ROM disassembly, and application examples. The book has long since been out of print. The book was written with an unknown word processor, probably on a Commodore PET.
Michael also has a repository, cbmsrc, which contains “Original source code of various Commodore computers and peripherals”
Are you a Commodore fan? Let us know in the comments below.
8-6-2021 (August 6, 2021) is the Snakiest day of the year and it’s also this year’s CircuitPython Day! The day highlights all things CircuitPython and Python on Hardware. See you there!
Stop breadboarding and soldering – start making immediately! Adafruit’s Circuit Playground is jam-packed with LEDs, sensors, buttons, alligator clip pads and more. Build projects with Circuit Playground in a few minutes with the drag-and-drop MakeCode programming site, learn computer science using the CS Discoveries class on code.org, jump into CircuitPython to learn Python and hardware together, TinyGO, or even use the Arduino IDE. Circuit Playground Express is the newest and best Circuit Playground board, with support for CircuitPython, MakeCode, and Arduino. It has a powerful processor, 10 NeoPixels, mini speaker, InfraRed receive and transmit, two buttons, a switch, 14 alligator clip pads, and lots of sensors: capacitive touch, IR proximity, temperature, light, motion and sound. A whole wide world of electronics and coding is waiting for you, and it fits in the palm of your hand.