This is a black and white image of circuit board chassis mounted into various racks inside a room. The equipment on the left side of the image houses the advanced control, delayed control, and address arithmetic unit. The equipment in the center is the indicator panel. The equipment on the right is the interplay control, fast registers, main arithmetic unit, and interplay address list and registers. There are no covers on any of the chassis except the clear covers on the advanced control. All the equipment in the image is exposed showing the wiring inside. The bottom of each rack holds the power supply. Light is coming the direction of the camera. Written in text on the diazo type drawing is "Figure 1", "Advanced Control", "Delayed Control", "Address Arithmetic Unit", "Indicator Panel", "Faster Registers", "Main Arithmetic Unit", "Interplay Control", "Interplay Address List Memory and Registers", and "Power Supply".
Identification photograph; Publicity photograph
Computer industry--History; Computers--History; Electronic data processing--History; Diazo type drawings