IBM 026 Keypunch Emulator for the X Window System.

 * Requires slow, deliberate typing or input will be lost
  (typeahead can be enabled if you insist)
 * Overpunches available by backspacing or holding down Alt or Meta
 * Tab set for FORTRAN
 * Automatic sequence numbers in columns 73-80 (can be disabled)
 * Paste X11 selection with middle mouse button
 * Can save deck in file, either in ASCII or in Douglas Jones's standard format
 * Can select from several card and keypunch types

WWW: http://x3270.bgp.nu/x026.html