Dublin Core
Title
Digital PDP-9 Analog-to-Digital Converter (?)
Description
This is a marketing photograph of a late 1960s / early 1970s Digital Equipment Corporation computer module. While no model number is visible, based on labeling and other photographs that accompanied it, it appears to be a PDP-9 A-D Converter Option: an I/O device that allows the acquisition of analog signals and converting them to digital data. Target market for the PDP-9 was laboratory instrumentation, nuclear physics experiments, and industrial data acquisition so this seems to be a likely identification.
The indicator lights: ADC OV (overflow), ADC FLAG, DATA REQ, CLOCK correspond to common functions in a device that samples analog data (possibly on a certain interval) and supplies the converted value when the computer is ready.
The indicator lights: ADC OV (overflow), ADC FLAG, DATA REQ, CLOCK correspond to common functions in a device that samples analog data (possibly on a certain interval) and supplies the converted value when the computer is ready.
Creator
Digital Equipment Corporation
Date
ca 1967
Contributor
Charles Valentine
Identifier
2026.68
Still Image Item Type Metadata
Original Format
Photo print
Physical Dimensions
8 x 10 in.
Storage
PB68
SU18-1