PDP-10 Software

License

DEC's commercial PDP-10 software on this site is available for download under the terms of DEC's PDP-10 Software Personal License.

File Format

These files are in John Wilson's tape image format. The "tapecopy" program (in the utility section below) can be used to copy tapes to tape image files, and vice versa.

The tape image files have been compressed with bzip2.

Why bzip2? Because it results in much better compression than the more common gzip (or zip). For instance, for the total collection of tape images on this page, bzip2 compressed images are 21% smaller than gzip compressed images.

Since bzip2 is open-source software, there are already executables for many platforms, and if you can't find one for yours, you can always compile it yourself.

DEC Software

Other PDP-10 Software

This is software from sources other than DEC, so it my be accessed without registering for a password.

Some of the DECUS TOPS-20 tapes

Utility Software

Utility software for dealing with tape images and TOPS-10 BACKUP tapes. As supplied, these programs run on Linux.

Wanted

If you have other PDP-10 software, please contribute it to 36bit.org! Official DEC distribution tapes are especially helpful, as are DECUS tapes.

Contributions in John Wilson's tape image file format are preferred, but I'll try to deal with other formats as needed.

If you software to contribute, but you don't have a way to read your old 9-track tapes or DECtapes, please consider making the tapes available for loan.

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Last updated October 31, 1999

eric@brouhaha.com

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