scrool

from Jargon File (4.4.4, 14 Aug 2003)

scrool
 /skrool/, n.

   [from the pioneering Roundtable chat system in Houston ca.: 1984;
   prob.: originated as a typo for `scroll'] The log of old messages,
   available for later perusal or to help one get back in synch with the
   conversation. It was originally called the scrool monster, because an
   early version of the roundtable software had a bug where it would dump
   all 8K of scrool on a user's terminal.

from The Free On-line Dictionary of Computing (8 July 2008)

scrool

   /skrool/ [The pioneering Roundtable chat system in Houston
   ca. 1984; probably originated as a typo for "scroll"] The log
   of old messages, available for later perusal or to help one
   get back in synch with the conversation.  It was originally
   called the "scrool monster", because an early version of the
   roundtable software had a bug where it would dump all 8K of
   scrool on a user's terminal.

   [{Jargon File}]

[email protected]