IBM 2501
The IBM 2501 is a punched-card reader from IBM with models for the System/360 and System/370 mainframe systems and for the IBM System/360 Model 20, the IBM 1130 and IBM System/3 minicomputers. 2501 models can read 80-column cards at either 600 or 1000 cards per minute (CPM).
| Type | Punch card reader |
|---|---|
| Release date | 1965 |
| Predecessor | IBM 1402 |
| Related | IBM 2540 |
The 2501 is no longer sold, but is simulated in software on current IBM systems.
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