Item030: IBM Computer Chip Pendant - White, Silver, Square, DMA
About the Necklace
This pendant is made from an upcycled 1990s IBM DMA* Chip. Its function was to control access to memory in an IBM mainframe. Because the chip is a Flip Chip, you are looking at the chip's back; it is mounted face down. Included is a micro-photo of a 1x1mm area of the chip's bottom. The chemical process of making the chip gives the chip's back-side different colors such as pink, blue, green, or yellow. There are silver dots and lines that lead into the chip. The dots are the top of pins that go down through the ceramic to insert the chip into a circuit board. The lines are wires that attach the chip to the pins.
* DMA = Direct Memory Access, it was a chip that off-loaded memory access work from the main processor.
The 1.25" square silver-plated pendant (due to manufacturing differences your chip may look slightly different than the one pictured here), a 24" silver-plated necklace, and a ChipScapes card that gives information about this jewelry.