Information about computers

Here you will find information about my various private computer projects.

Many years ago I was developing a unix/Xwindows based email client for myself, and started to work with Athena widgets. LessTif, QT, etc were not available at the time. I found myself extending and overwriting good chunks of Athena to get look and feel I wanted. So I ended up developing Xpw widget set. This set is easy to use since most of widgets are smart enough to display themselves in a meaningful way, and to return to the programmer in a nice clean way. I have not gotten back to the project in several years, but go here to see what is available. If you do any work on this please forward back to me any changes and I will incorporate them into sources and put up a new version.

Also back in late 80's I developed a macro assembler that could be easily ported to different architectures. I decided that I would make the source available to those who might be able to use it. I used it for a while when I was working with Minix 386, and it is very fast.

Over the last couple years my interest has been with the IBM 7000 series of computers. I have developed simulators for most of them now. Here is some pages about the various computers in the series and some recovered software.