These are diagrams describing both the A4000 mouse and the A2000 mouse which
are different but the effect is the same. The third diagram is a conversion of
a ps2 mouse with most of the guts ripped out leaving only the mechanical
components and the photo emitters and detectors. (LEDS and PhotoTransistors).

PERMISSION  UID  GID    PACKED    SIZE  RATIO METHOD CRC     STAMP     NAME
---------- ----------- ------- ------- ------ ---------- ------------ ----------
[generic]                13425   14694  91.4% -lh5- a6f1 Dec 27  1998 Mice/Mouse-A2k.png
[generic]                16332   17306  94.4% -lh5- 3c76 Dec 27  1998 Mice/Mouse-A4k.png
[generic]                13322   13491  98.7% -lh5- 33bd May 23  1999 Mice/Mouse-conv.png
---------- ----------- ------- ------- ------ ---------- ------------ ----------
 Total         3 files   43079   45491  94.7%            Jan  6  2000