Index: en/computer/punchcard.php =================================================================== --- en/computer/punchcard.php (revision 775) +++ en/computer/punchcard.php (revision 777) @@ -70,10 +70,33 @@ IBM 029 (build since 1964), on the right hand the JUKI puncher (made in Japan). The JUKI puncher is not accidentally looking - like the IBM: In 1971 IBM brought the puncher 129 on the market - which buffers the content of the whole punchcard while reading. - Therefore IBM selled the license to reproduce the machine. In + like the IBM: The type 129 card punch was introduced by IBM in 1971. It is capable of storing +the contents of a whole card prior to punching it, thus making corrections +possible. Therefore IBM selled the license of the 029 to reproduce the machine. In 1971, the IBM 029 costed about 15.500 DM.
+IBM 129 Card Data Recorder.
+ IBM's answer to the electronic card punch UNIVAC 1710 was its most
+sophisticated and last member of its venerable family of card punched, the
+model 129. Every usable modern technology was incorporated in this device: Data
+and punch programs were stored in a FET-based memory, early seven-segment LED
+displays were used to diplay the current column, the card transport employed a
+stepper motor. A very complex SLT-based control logic implements a wide
+variety of features: Verification of punched cards, printing the data stored on
+a card on its edge, storing up to six customized card formats etc.
+
+The IBM 129 is a rather rare find since the market for card punches was already
+saturated in the early 1970s. In addition to this the decline of punch card
+equipment was already forseeable.
+
+Our machine has a serial line interface as an add-on which we are currently
+repairing.
+