Describe the punch card’s impact on the development of computer technology?
Magnetic tape replaced punch cards enabling computers to input and output data more consistently and efficiently. But what was on the punch cards and magnetic tape that made the computer work?
By: ♥jo♥
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Filed under Engineering by on Dec 29th, 2009. 
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Digital information was what was stored on both.
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It was the ability to input a program and any data for it that had been written or generated beforehand, and to save same and results in a physical form.
Jacquard Loom cards and Hollerith machine cards were the early developments that IBM pursued in the 1940s.
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It was the memory that made the computer work!
The punch cards, punch tape, magnetic tape…were methods of storing the data
In those days there were big wars about how many bits do we need?
It started in accounting, 4 bits were required + it had several sings like $ and…
then by adding 2 more bits (6) it permitted text
adding another bit (7) permitted error recognition
and it evolved to today 64, maybe 128 bits
Automatic machines of the computing type came way, way before that
the name computer came when the machine had a stored program in a memory!
before that the program was on a wire board or some other hardware device
The first machines operating from a program were waving machines to make carpets
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