Download the attachment and drag into TiddlyWiki.com
Create a new tiddler and paste the following into the tiddler (I might have to post a reply if the code below doesn't show correctly. I can never remember if TiddlyTalk needs single carets or triple carets):
`
<div style="width:360px;height:360px;">
{{mishka's clock||Basic Console Window Template}}
</div>
`
Now you have a tiddler displaying the running BASIC program.
If you like to fiddle with BASIC programs, edit the "mishka's clock" tiddler. You'll see it has a "RUN" button in the toolbar, so that you can test your changes to the program. (You might want to modify a copy of that tiddler in case things go awry.)
From the web: