ENGINEERING SKETCHPAD (IBM & compatibles) CAT.# 161-D01-38

  ENGINEERING SKETCHPAD is a simple graphics program for engineers,
  technicians, architects, interior designers, or anyone who frequently uses a
  straight-edge, compass, and templates to make drawings for documentation and
  explanation.  ESP-generated drawings are quickly and easily prepared,
  printed, and modified.  ESP is not a "paintbrush" program for general art.
  These are usually poorly suited to engineering drawings. Instead, it draws on
  a 5,000-point Cartesian coordinate system to allow the preparation of
  easily-read drawings (transistors, resistors, desks, etc.). These stored
  drawings can be rotated, mirrored, inverted, expanded, or contracted before
  being included in a new drawing. In addition, structures may be "dragged
  about" to simplify positioning them.

  ESP is menu-driven to make it easily learned and retained. It comes with a
  concise instruction manual that also serves as a training guide with examples
  to help you quickly master drawing techniques. This package was written by a
  working engineer to make his own job easier, and is published in the belief
  that useful, convenient software need not be expensive. The package includes
  documentation and a disk containing the compiled program, the PASCAL source
  code, and many electrical-engineering template drawings.

  ESP requires 128K of RAM, the IBM graphics board, two disk drives, a printer,
  and a graphics screen dump program to prepare hard copy of the drawings.
  ESP has the option (included) of using the 8087 math co-processor for
  increased speed.