The PDP-9, the fourth of the five 18-bit minicomputers produced by Digital Equipment Corporation, was introduced in 1966. A total of 445 PDP-9 systems were produced, of which 40 were the compact, low-cost PDP-9/L units.
PDP-9
A PDP-9 on display at ACONIT in Grenoble, France
Model 33 Teleprinter, similar to the PDP-9's console device, though the PDP-9 had faster dedicated paper tape devices instead of the integrated reader/punch.
Digital Equipment Corporation
Digital Equipment Corporation, using the trademark Digital, was a major American company in the computer industry from the 1960s to the 1990s. The company was co-founded by Ken Olsen and Harlan Anderson in 1957. Olsen was president until he was forced to resign in 1992, after the company had gone into precipitous decline.
Assabet Woolen Mill, former headquarters of Digital Equipment Corporation from 1957 to 1992
DEC was headquartered at a former wool mill in Maynard, Massachusetts, from 1957 until 1992.
System Building Blocks (System Module) 1103 hex-inverter card (both sides)
PDP-1 System Building Block #4106, circa 1963 - note that one transistor (yellow) has been replaced