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Edison Life
The Great Hurricane of September 21, 1938
The bi-monthly magazine published by the Boston Edison Company for its employees. This issue is entirely devoted to the 1938 hurricane.
United Cooperative Society Share of Capital Stock
One share of stock issued to Owen J. Hill in 1956 for the sum of $5.00.
Ink Blotter
Frank J. McCarron, Ins. Agent
An ink blotter promoting Saint Paul Fire and Marine Insurance Company, local agent Frank J. McCarron.
Publicity photograph of the Spark Chamber Scanning System 2319
Used in physics laboratories the Spark Chamber Scanning System used television cameras to record the location of cosmic ray events within the spark chamber. This information was recorded on tape and then fed into an IBM computer for further…
Publicity photo of PDP-5 computer
DEC's first 12-bit computer which introduced the instruction set that would later be expanded in the PDP-8. The PDP-5 had a memory capacity of 1,024 to 32,768 12-bit words (roughly 2KB-64KB). It was the first computer line in the industry with more…
PDP-4 Computer
The PDP-4 was 18-bit machine intended to be a slower, cheaper alternative to the PDP-1; it was not considered commercially successful. All later 18-bit PDP machines (7, 9 and 15) were based on a similar, but enlarged instruction set, more powerful,…
Early Digital Laboratory Modules
Circa 1960, Digital Equipment Corporation's (DEC) first products were a range of packaged logic circuit known as Digital Laboratory Modules. Built with discrete transistors the modules performed basic logic functions (e.g., clocks, pulse generators,…
Memory Test Computer 1516
Publicity photo of the Memory Test Systems 1516 core memory tester (built from DEC system modules.) A memory test computer was used to test the ferrite core memory modules in early general computers such as Whirlwind.
Testing core memory
This appears to be a photo of technicians testing a core memory module with a Digital Equipment Corporation memory tester.
Digital PDP-1 computer
Publicity photo of an early model of a Digital PDP-1 (Programmable Data Processor) computer. On table is a CRT display, control panel and paper tape reader.
Memory Core Tester 2113
Publicity photo of the Memory Test Systems 2113 Core Memory Tester (built from DEC system modules.) A memory test computer was used to test the ferrite core memory modules in early general computers such as Whirlwind.
Digital employees
Two female employees discussing work in a Mill office. DECwriter and acoustic coupler in foreground.
Building 1 Illuminated
A prize-winning entry in Digital's Photo Contest, taken with Pentax camera (2 second exposure at f/5.6)
Engineers using LINC-8 computer
A group of 4 male engineers(?) pose with LINC-8 computer (left) and ASR-33 teletype (right)
Ken Olsen
Kenneth Olsen, President of Digital Equipment Corporation, gives social security numbers to be typed by Duane Mulcahy. According to Olsen's description of the early days: "We did everything ourselves. My wife cleaned toilets and my brother Stan and…
Students learning about PDP-8
Instructor Ed Hilton teaching students with the PDP-8/S (ASR-33 teletype next to student on right).
Ken Olsen presents 1000th PDP-8
Digital President Ken Olsen presents the 1000th PDP-8 computer to Teradyne President Nick DeWolf.