DECSYSTEM10 Core Memory
A closeup of part of one of the memory boards taken from the University of Queensland's KA10 (DECSYSTEM10 PDP10) which was purchased in 1967. After it was decommissioned the memory boards were pulled apart and I managed to get one.
The donuts (cores) of magnetic material with the three wires though each on are visible in the photo but are too small to clearly make out to the naked eye. Each donut is a fraction of a millimeter in size.
The whole board is about 10cm squared. The photo shows about 1/8 of the whole board.
DECSYSTEM10 Core Memory
A closeup of part of one of the memory boards taken from the University of Queensland's KA10 (DECSYSTEM10 PDP10) which was purchased in 1967. After it was decommissioned the memory boards were pulled apart and I managed to get one.
The donuts (cores) of magnetic material with the three wires though each on are visible in the photo but are too small to clearly make out to the naked eye. Each donut is a fraction of a millimeter in size.
The whole board is about 10cm squared. The photo shows about 1/8 of the whole board.