
DEC Special Graphics is a 7-bit character set developed by Digital Equipment Corporation. This was used very often to draw boxes on the VT100 video terminal and the many emulators, and used by bulletin board software. The designation escape sequence ESC ( 0 switched the codes for lower-case ASCII letters to draw this set, and the sequence ESC ( B switched back. IBM calls it Code page 1090.

The Digital Equipment Computer Users' Society (DECUS) was an independent computer user group related to Digital Equipment Corporation (DEC).

Digital Federal Credit Union (DCU) is a credit union based in Marlborough, Massachusetts. It has over 800,000 members and is the largest credit union headquartered in New England as measured by assets, managing over US $8 billion. DCU is regulated under the authority of the National Credit Union Administration (NCUA) of the US federal government.

Interex EMEA was the EMEA HP Users Organisation, representing the user community of Hewlett-Packard computers.

Sixel, short for "six pixels", is a bitmap graphics format supported by terminals and printers from DEC. It consists of a pattern six pixels high and one wide, resulting in 64 possible patterns. Each possible pattern is assigned an ASCII character, making the sixels easy to transmit on 7-bit serial links.

The SRM firmware is the boot firmware written by Digital Equipment Corporation (DEC) for computer systems based on the DEC Alpha microprocessor. SRM are the initials of (Alpha) System Reference Manual, the publication detailing the Alpha AXP architecture and which specified various features of the SRM firmware.

The Systems Research Center (SRC) was a research laboratory created by Digital Equipment Corporation (DEC) in 1984, in Palo Alto, California.

The biographical book, The ultimate entrepreneur: the story of Ken Olsen and Digital Equipment Corporation, chronicles the experiences of Ken Olsen racing to design minicomputers at the company of his own founding, Digital Equipment Corporation. At the time the book was published by two computer journal writers, Ken Olsen was competing with other Massachusetts computing companies such as Data General, Prime Computer, Wang Laboratories, Symbolics, Lotus Development Corporation, and Apollo Computer. While believing in the value of software, he did not believe in the value of software separate from hardware, and missed the opportunity to fund Lotus 1-2-3 or Visicalc. He also missed the importance of the personal computer, but his futuristic vision of the Client–server model helped to launch Ethernet.