Category: Technical Notes
After I gave a presentation on Retrobrite at KansasFest, people asked me to write about the process, never wrote about Retrobrite as there are so many articles and videos on the internet but finally found some time to write about it. There are many ways to Retrobrite. I avoid submerging because it’s a waste of peroxide, and maybe toxic for the environment, also don’t wrap in plastic as it allows areas to wrinkle and get more concentrated than others, promoting…
For a long time I have been looking for the Apple //c Flat Panel LCD, one of the nicest items on the line. This monitor was short lived as its readability was poor and the item expensive. It was retired early so not many were produced, which is what makes them rare and sought today by collectors. I was lucky enough to be able to secure one, but quickly disappointed when first using it. I am a hands-on person that…
Finding interesting stuff for the Mac is difficult given the relative numbers of users and programmers out there. I think I may have found something though. In the *NIX world (including OS X) the Python language seems to be the up and coming thing for programming. Python is an interpreted object oriented language. Python comes free with OS X, Linux, and BSD. It has to be downloaded and installed if it is to run on a Windows machine. I have…
by John Covington Finally! !! Disk II is out. If you’re lucky, you will be able to play with one in your local computer store until yours arrives from Cupertino. That is what I have been doing this last week, and this article comes from using the disk and my varied background in Data Processing. Hopefully, I’ll be able to explain some of the HOWS and WHYS of the disk system and clear up some of the blind spots in…
The following section covers use of the Apple II mini-assembler only. It is not a course in assembly language programming. The following section assumes the user has a working knowledge of 6502 programming and mnemonics. The Apple II mini-assembler is a programming aid aimed at reducing the amount of time requir.ed to convert a handwritten program to object code. The mini-assembler is basically a look-up table for opcodes. With it, you can type mnemonics with their absolute addresses, and the…
