These are Jacquard loom cards. Jacquard looms are used to manufacture complex patterns in fabric, such as for brocade. The cards, strung together, provide instructions to the loom about how to complete the pattern, lowering or raising the harness that guides the warp thread.
 

These are Jacquard loom cards. Jacquard looms are used to manufacture complex patterns in fabric, such as for brocade. The cards, strung together, provide instructions to the loom about how to complete the pattern, lowering or raising the harness that guides the warp thread.

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Computer History Museum Photo Gallery: weird, fascinating photos including a giant Cray, and a 60Kg hard drive

Zara Baxter toured the Computer History Museum in California, and took these fascinating photos, including a giant 27Kg hard drive, a Star Trek-like SAGE Air defence system, and other intriguing artifacts. Scroll down for the captions! Click to enlarge photos.

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