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.