PERRY COMPUTER SERVICES

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Licences and Credits

Last updated November 13, 2026

Most of this site is our own work. A few pieces are not, and this page names them, says where they came from, and gives the terms they're used under. Thank you to everyone who made them and gave them away.

Word lists (our word games)

  • ENABLE (Enhanced North American Benchmark Lexicon), compiled by Alan Beale and others and maintained by M. Cooper. It is in the public domain: its authors released it for anyone to use. It decides which words are legal in our word games. Our thanks to the people who built it.
  • Word frequency counts from Peter Norvig's count_1w.txt, which are derived from the Google Web Trillion Word Corpus. We use them once, when we build Word Wheel's list, to decide which words are familiar. The counts themselves are not on the site; only the resulting order of words is. The file states no licence of its own, so we credit it here.
  • SCOWL (Spell Checker Oriented Word Lists), through the Debian american-english list, copyright 2000-2011 Kevin Atkinson. We use it, again only at build time, to leave abbreviations out of Word Wheel. Its licence reads:
    Permission to use, copy, modify, distribute and sell these word lists, the associated scripts, the output created from the scripts, and its documentation for any purpose is hereby granted without fee, provided that the above copyright notice appears in all copies and that both that copyright notice and this permission notice appear in supporting documentation. Kevin Atkinson makes no representations about the suitability of this array for any purpose. It is provided "as is" without express or implied warranty.

Icons

Font Awesome Free 5.0.12, © Fonticons, Inc., loaded from fontawesome.com. The icons are licensed under CC BY 4.0, the fonts under the SIL Open Font License 1.1, and the code under the MIT licence. More at fontawesome.com/license/free.

Typefaces

Noto Sans, Merriweather and Fjord One, served by Google Fonts. All three are open fonts under the SIL Open Font License 1.1.

Sign-in page

Materialize 1.0.0, © Materialize, loaded from cdnjs.cloudflare.com. It is released under the MIT licence: free to use, copy and modify, provided its copyright notice and licence stay with it, and offered without warranty.

The server

The software that runs the site depends on open-source packages, such as Express, pg, ws and Nodemailer, under MIT-style licences. They run on our server and are not sent to your browser, so nothing here needs to be shown on a page. We're glad to have them.

Everything else

The games, the apps, the artwork and the code that you see on this site were made by Perry Computer Services. If you think something here is yours and isn't credited, contact us through the information on our site and we'll fix it.