O Apple II it was the first Apple computer that had the possibility of being used with a monitor. However, he did not have a disk drive, meaning programs and data had to be saved and loaded onto cassette recorders (which were slow and unreliable).
The big problem with all this was that disks, even floppy disks, needed expensive hardware drivers and complex software. Steve Wozniak (confusing Apple) solved the first problem by designing an incredibly smart floppy controller using only 8 integrated circuits, then managing to do the programmed logic that other controllers did with hardware. But the problem was not completely solved, since they had to find high-level software to organize and access the programs and data on the disk.
Who achieved the feat was Paul Laughton, a programmer hired by Shepardson Microsystems. On April 10, 1978, Steve Jobs then signed a $ 13,000 contract with Bob Shepardson for a file manager, a BASIC interface and utilities to be created for the Apple II.
Today, thanks to Paul Laughton and Dr. Bruce Damer (founder and curator of the DigiBarn Computer Museum) and with Apple's permission, the Computer History Museum (Computer History Museum) is making the Apple II DOS source code available for whoever you want, as long as it is not used for commercial purposes and is not reproduced without the authorization of Apple. In total there are seven files (PDFs, DOCXs and TXTs) which can be downloaded directly from the CHM website.
Very nice. Even cooler to think that the lucky 15 who participated in the first MM Tour had the opportunity to visit the Computer History Museum and see up close not only an Apple II, but also an Apple I, a Lisa, a Macintosh 128k and many others machines that made history.
Let the second edition come!