Source : Free On-Line Dictionary of Computing

pencil and paper
     
        An archaic information storage and transmission device that
        works by depositing smears of graphite on bleached wood pulp.
        More recent developments in paper-based technology include
        improved "write-once" update devices which use tiny rolling
        heads similar to mouse balls to deposit coloured pigment.  All
        these devices require an operator skilled at so-called
        "handwriting" technique.  These technologies are ubiquitous
        outside hackerdom, but nearly forgotten inside it.  Most
        hackers had terrible handwriting to begin with, and years of
        keyboarding tend to have encouraged it to degrade further.
        Perhaps for this reason, hackers deprecate pencil-and-paper
        technology and often resist using it in any but the most
        trivial contexts.
     
        [{Jargon File}]
     
        (1994-12-06)