Computer programming in the punched card era

The punched card era of computer programming refers to the period when punched cards were the primary method of inputting data and instructions into early computers, roughly from the 1900s to the 1970s. This method became widespread with the development of technologies such as the IBM punch card system. ### Overview of Punched Cards: 1. **Physical Medium**: Punched cards (or punch cards) are sheets of stiff paper that have holes punched in them in specific locations.