Browse Items (476 total)
Sort by:
Daniel C. Osborn Commemorative Plaque
A plaque commemorating Daniel Osborne, first printer in Maynard. Plaque hung in a Digital Equipment Corporation building.
DEC PDP-1 Computer - 1959
A black and white photo of the PDP-1 Computer. Digital demonstrated its prototype PDP-1 computer at the 1959 Joint Computer Conference in Boston, MA. The whole showing was buzzing about this fledgling company called Digital and this little machine…
DEC PDP-4 Computer
A black and white photo of DEC's PDP-4 computer. Digital's PDP computer line was designed with the goals of interactivity, low cost, simplicity, and reliability. The computers in this 18-bit computer family are the PDP-1 of 1960, PDP-4 of 1963,…
DEC Calendar - 1985
A poster/calendar for the Digital Central Engineering Development Programs in 1985. The calendar features a picture of the Assabet Mills from Thompson Street in 1881.
DEC Family Tree
A map of the origin and development of Digital Equipment Corporation from 1957 through 1986. The DEC Tree is an article that was published in the magazine "Computerworld" on September 24, 1986.
DEC FDDI PCI Controller
Digital Equipment Corporation
The circuit board is embedded in acrylic and used as a display.
FDDI stands for "Fiber Distributed Data Interface", a standard used in the early 1990s for data transmission in a local area network using optical fiber cables.
FDDI stands for "Fiber Distributed Data Interface", a standard used in the early 1990s for data transmission in a local area network using optical fiber cables.
DEC Keyboard LK201AA
Digital Equipment Corporation
The keyboard was introduced in 1982 to be used with the VT 220 terminal.
DEC Memory Tester 1516
A black and white photo of DEC Memory Tester 1516. The first systems Digital made were memory test systems to check the core stacks that were the memories used at that time. The technology used in these test systems were later used to build memories…
DEC PDP-8/e Computer
Digital Equipment Corporation
This is the processor for the PDP-8/e, a (relatively) low-cost minicomputer model that was introduced in 1970. (The PDP-8/e was sold with a tape drive, terminal, and cabinets that we do not have.)
The 12-bit CPU was built using DEC M-series Flip…
The 12-bit CPU was built using DEC M-series Flip…
DEC: circuit board with prototype chips
Circuit board.
Two chips center-marked with 'PROTO'.
End of board marked with '50-21531-01 A1' and 'OCT-10 94V-0' and '29591'.
Extensive dust covering back from use.
Two chips center-marked with 'PROTO'.
End of board marked with '50-21531-01 A1' and 'OCT-10 94V-0' and '29591'.
Extensive dust covering back from use.
DEC: circuit board with prototype chips and EPROM extension
Circuit board with EPROM chip insertion extension at end.
Two chips center-marked with 'PROTO'.
End of board marked with '50-21531-01 A1' and 'OCt-10 94V-0' and '29591'.
extensive modification to circuitry has been performed in the form of added…
Two chips center-marked with 'PROTO'.
End of board marked with '50-21531-01 A1' and 'OCt-10 94V-0' and '29591'.
extensive modification to circuitry has been performed in the form of added…
DEC: LPWR circuit board, modified as wall clock
Large circuit board modified to be a wall clock (cut out and modified with addition of a small quartz clock movement).
Board marked 'LPWR' and 'GS-2' and 'digital' logo, along with other various designations.
4 back plane connectors and two locking…
Board marked 'LPWR' and 'GS-2' and 'digital' logo, along with other various designations.
4 back plane connectors and two locking…
DEC: Power supply board, in original box
Power supply board, in original box; appears unused.
Box marked '9905439 Rev B 11/80'.
Board marked: '50007271-P2 Side 2'.
Very large capacitors and other components attached.
Box marked '9905439 Rev B 11/80'.
Board marked: '50007271-P2 Side 2'.
Very large capacitors and other components attached.