1. Early computers required input in the form of punched cards.

2. The contents of a punch card can be read in and read out readily.

3. The first step is to read the contents of a punch card into a core.

4. Every day he punched cards, punched and punched, trying to avoid instability, divergence, distortion.

5. The amended listing was then sent to an outside data preparation bureau where data were recorded on punch cards.

6. This makes me all sound like punched card computers to you, But for me i was very proud of my 2400 baud modem.

7. A perforation, as in a punched card or paper tape.

8. Bouchon and Falcon's punched card loom appeared in 1775, later improved on by Jacques de Vaucanson.

9. The original punched card is put into the machine and, referring to the papers from which the first version was prepared, the checking operator tries to punch out a second version.

10. This machine used valves rather than transistors or microchips and required input in the form of punched cards.

11. A card on which binary coded data are recorded with recording density larger than a punched card. The recorded data can be readout by optical or magnetic readers.

12. A card on which binary coded data are recorded with recording density larger than a punched card.