System Building Block for the PDP-1
Manufacturer: Digital Equipment Corporation (DEC)
Dimensions: 1/2 x 7 x 4 1/2 in.
DEC System Building Blocks were an outgrowth of DEC's earlier Laboratory Modules. They were faster and had a standardized connector system optimizing their use in building sophisticated logical systems--including computers. The PDP-1 is based entirely on such module.