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  • Collection: Digital Equipment Corporation

2026.155e.jpg
An enlarged copy of a Hager cartoon that hung in Jack Knowles, Engineer, office as a competition reminder. The "Watch out for the competition" statement was added by DEC.

mhs-2026.76.pdf
A partial review of the engineering culture at DEC praising and critiquing the strurcture the company has developed.

mhs-2026.73.pdf
This is a 1991 DEC employee directory of services in the Mill complex including phone numbers, times of operation, and location: building number, floor, pole number (e.g., MLO3-1, Pole 46C). The brochure also included a map of the complex and the…

mhs-2026.72.pdf
A faded list of the characteristics that define real "Millrats", a DEC cultural term (of sorts) for a Digital employee who has worked in the Maynard Mill for a long time.

mhs-2026.71.pdf
This is a 1990 DEC employee guide to the available conference rooms within the Mill Complex . The company named conference rooms after people and other cultural references to Maynard and the vicinity and Digital Equipment Corporation history.

mhs-2026.69.jpg
A photograph of the KDF-11B is a CPU processor module developed by Digital Equipment Corporation (DEC) for its PDP-11 family of 16-bit minicomputers. The KDF-11B board is associated with the PDP-11/23+.

Technically, the KDF-11B is a quad-height…

mhs-2026.68.jpg
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:…

mhs-2026.67.jpg
A photo of a Digital Equipment Corporation wire-wrapped backplane assembly for the PDP-9 computer.

This photograph demonstrates the design philosophy of DEC computer design in the late 1960s and early 1970s: a wire-wrapped (no solder) insulated…

mhs-2026.66.jpg
A Digital Equipment Corporation PDP-9 being manufactured/tested within a lab in the Mill complex.

A note states that the gentleman in the right side of the photo is Frank Capone.

The notation at the bottom of the photograph implies that this…

mhs-2026.65.jpg
A photo of what is possibly a PDP-9 4K magnetic core memory module / backplane assembly using coincident-current magnetic core memory (see COINC DUAL label)

The top panel shows: DATA ADDRESS Indicators labeled 2048 and 4096
A/B memory sections. …

mhs-2026.64.jpg
Photograph showing the inside of several PDP-9 cabinets. The Digital Equipment Corporation's PDP-9, a minicomputer that was introduced in 1966 and used discrete transistor logic.

mhs-2026.63.jpg
A marketing/catalog photograph of Digital Equipment Corporation's PDP-9, a minicomputer that was introduced in 1966 and sold about 400 units.

2026.48e.jpg
Digital Equipment Corporation presents 50,000th LSI-11 microcomputer to Bridgeport-Textron.

l to r
Jack McKeen, Product Line Manager (DEC)
Carol Seaman, Product Line Market Coordinator (DEC)
Andy Knowles, Vice President Corporate Marketing…

2025.449a.jpg
Boxed presentation pocket knife that was an employee service award (estimated for 10 or 15 years of service), probably from the 1980s. The knife has been embellished with an image of the Clock Tower along with the word "digital".

mhs-2024.518.pdf
A short booklet describing the capabilities of the PDP-14 Programmable Controller

mhs-2024.41.pdf
A summary of milestones of Digital Equipment Corporation's evolution from 1957 to 1990

2023.662e1.jpg
Pamphlet distributed on a tour of the digital plant in the mill at Maynard.
Peter Koch, plant manager.

2023.639e1.jpg
Mounted photos and narrative presented to Ken Olsen in 1983 commemorating the bell donation from the American Woolen Company to the Mission Evangelical Congregational Church in 1935.

Note: Bell was removed from the Church in 2021 and now is on…

2023.608e1.jpg
A plaque commemorating Daniel Osborne, first printer in Maynard. Plaque hung in a Digital Equipment Corporation building.