FUNDAMENTALS OF COMPUTER

Detailed explanation-1: -Answer: A punched card (also punch card or punched card[2]) is a piece of stiff paper that holds digital data represented by the presence or absence of holes in predefined positions. Punched cards were once common in data processing applications or to directly control automated machinery.

Detailed explanation-2: -Data is stored on the card by punching holes, which represent letters or numbers, in specific column locations that relate to the information being recorded. To read this data, the card must be run through a machine that can detect or ‘sense’ the location of the holes.

Detailed explanation-3: -Punched cards are a great example, because they were used for both input and output. They were also used for storage. A punched card was a piece of card with holes punched in it. The number and locations of the holes on each card was used to represent data.

Detailed explanation-4: -Detailed Solution The Punched Card is a piece of stiff paper that can be used to contain digital data represented by the presence or absence of holes in predefined positions. In early computing Punched cards were used as a primary medium for input of programs and data.

Detailed explanation-5: -Humans punched holes of data into uniformly cut papers that were then read by specially designed machines meant to detect the holes in these punch cards to automatically input large amounts of data instead of relying on manual counting.