insider.si.edu

Punch Cards Associated with the Computer Solution of the Four-Color Problem

IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. These are some of the punched cards ...
Hackaday

punch card

Before the Commodore 64, the IBM PC, and even the Apple I, most computers took input data from a type of non-magnetic storage medium that is rarely used today: the punched card. These pieces of ...
The Verge

A 3D-printed punch card reader: the first step to a working printed computer

Chris Fenton hopes to build a working electromechanical computer out of parts made by a 3D printer. He has currently developed a working prototype of a punch card reader. Chris Fenton hopes to build a ...
insider.si.edu

IBM 827213 Punch Cards for the Electronic Computer Project at Princeton University

IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. Two IBM 80-column punch cards, tan.
Computer Weekly

CW@50: Storage – From punched cards to flash and the cloud

The relationship of storage to the architecture of computing is all about capacity, latency and throughput. In other words, how much data can be kept, how quickly it can be accessed and at what rate.