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Digital Equipment Corporation

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uuid0009fgz

Namestring
Digital Equipment Corporation
Legal namestring
Digital Equipment Corporation
Company typeenum
Private
Founded yearint
1957
Descriptiontext

Digital Equipment Corporation (DEC) was a pioneering American computer hardware company founded in 1957 in Maynard, Massachusetts by Ken Olsen and Harlan Anderson. DEC created the minicomputer category of computing, producing a succession of systems including the PDP-1 (1960), the PDP-4 through PDP-16 series, the time-sharing DECsystem-10, and ultimately the 32-bit VAX (Virtual Address Extension) family, which became the company's flagship line. The PDP-11, introduced in 1970, and the VAX, architected under VP of R&D Gordon Bell, established durable architectural standards for minicomputer design and were accompanied by software such as the RT-11 real-time operating system. DEC also co-invented Ethernet through its DIX partnership with Intel and Xerox, with the standard announced in February 1982.

DEC generated revenue primarily through the sale of minicomputer hardware and software (including its VMS operating environment) to scientific, engineering, and business customers. Distribution was handled through a global direct enterprise field-sales organization, augmented by value-added resellers and system integrators, with marketing executed via trade publications, technology conferences, and direct customer engagement. At its peak, DEC was the second-largest computer company after IBM, competing in horizontal segments spanning research/engineering and business/enterprise computing. The company was acquired by Compaq in 1998 after 41 years of independent operation, and Compaq itself was acquired by Hewlett-Packard in 2002, ending DEC's corporate existence.

Short descriptiontext

Digital Equipment Corporation (DEC) was a pioneering American minicomputer company (1957–1998) that built the PDP and VAX product lines, co-invented Ethernet, and served scientific, engineering, and enterprise customers before being acquired by Compaq and then HP.

Operating statusenum
Acquired
Ownership categoryenum
Headcount rangeband
5,001–10,000
akta.pro rankint
HeadquartersMaynard, United States
HQ citystring
Maynard
HQ countrystring
United States
HQ regionstring
North America
Markets served

Serves global market

Offices1 record

Each record includes

City, Country, Type, Description, Source

Keyword5 values
minicomputer systems, VAX architecture, enterprise computing hardware, time-sharing computers, Ethernet networking
NAICS code3 codes
  • Computer and Peripheral Equipment Manufacturing33411
  • Computer and Peripheral Equipment Manufacturing3341
  • Other Communications Equipment Manufacturing33429
SIC code2 codes
  • Electronic Computers3571
  • Computer Communications Equipment3576
Product category
Minicomputer Systems
No data
GTM motion1 record

Each record includes

Type, Description, Source

Revenue model2 records
1Computer Hardware Sales
TypeHardware Sales
Description

DEC generated revenue primarily through selling minicomputer hardware systems including PDP and VAX line of computers to scientific, engineering, and business customers.

gordonbell.azurewebsites.net
2Software Licensing
TypeLicensing Royalties
Description

DEC sold software products and operating environments including VMS and related software for their computer systems.

gordonbell.azurewebsites.net
Marketing channels3 records

Each record includes

Title, Type, Stage, Description, Source

Distribution channels1 record

Each record includes

Title, Type, Scope, Target buyer, Description, Source

Cost components5 values
Supply Chain, Personnel, Technology or R&D, Operations, Marketing or Sales
GTM typeB2B
B2B
Offering typeHardware or Manufacturing
Hardware or Manufacturing
Core offering1 text field

Digital Equipment Corporation (DEC) designed, manufactured, and sold minicomputer systems and related software, most notably the PDP series and the VAX 32-bit family, along with operating systems such as RT-11. The company also co-developed the Ethernet networking standard with Intel and Xerox, targeting scientific, engineering, and business computing customers.

Differentiator
Functional benefit
Problem solved
Product overview1 text field

Digital Equipment Corporation (DEC) was a pioneering American hardware company (1957-1998) that produced a portfolio of minicomputers, microcomputers, and related software. The core products included the PDP series (PDP-1 through PDP-16), the VAX (Virtual Address Extension) family which was the flagship 32-bit system, and DECsystem-10. These were complemented by operating systems like RT-11. Gordon Bell, who served as VP of R&D, was instrumental in developing key architectural innovations including the PDP-11's new minicomputer architecture and the VAX computing environment. DEC pioneered time-sharing computing, multiprocessor systems, and contributed to Ethernet standards development. The company was eventually acquired by Compaq in 1998 and then by HP in 2002.

Product and service9 records
1PDP-1 (Programmed Data Processor-1)
CategoryMinicomputer
Description

One of the first time-sharing computers and minicomputers. Gordon Bell worked on PDP-1 and authored the F-25 PDP-1 Manual for I/O in 1960.

2PDP-4
CategoryMinicomputer
Description

A minicomputer produced by DEC in the early 1960s.

3PDP-5
CategoryMinicomputer
Description

One of the first minicomputers, mentioned in historical context of minicomputer start-ups.

4PDP-6
CategoryMinicomputer
Description

One of the first multiprocessor and time-sharing computers; antecedent to PDP-10.

5PDP-10
CategoryMinicomputer
Description

Time-sharing computer system evolved from PDP-6, developed in the 1960s-1970s.

6PDP-11
CategoryMinicomputer
Description

A groundbreaking 16-bit minicomputer that established DEC's architecture philosophy. Gordon Bell co-authored the seminal paper 'A New Architecture for Mini-Computers -- The DEC PDP-11' in 1970.

7VAX (Virtual Address Extension)
CategoryMinicomputer
Description

32-bit virtual memory minicomputer that became DEC's flagship product. Gordon Bell was responsible for the VAX Computing Environment as VP of R&D. The VAX Strategy document was written in October 1978 by Gordon Bell.

8DECsystem-10
CategoryMinicomputer
Description

Multi-user time-sharing system. Gordon Bell co-authored 'The Evolution of the DECsystem 10' published in Communications of the ACM, January 1978.

9RT-11
CategoryOperating System
Description

RT-11 real-time operating system with Introduction Manual (1977) and System User's Guide (1977).

Scale indicator3 records

Each record includes

Type, Value, Description, Source

Partnership5 partners
Strategic tierCoreTypeTechnology or IntegrationAnnounced on1980-01-01
Description

Digital Equipment Corporation collaborated with Intel and Xerox to develop and publish the Ethernet specification. Gordon Bell from DEC, Robert Noyce from Intel, and Ronald Liddle from Xerox formed the DIX group and announced Ethernet in February 1982 in New York City.

Strategic tierCoreTypeTechnology or IntegrationAnnounced on1980-01-01
Description

Digital Equipment Corporation collaborated with Intel and Xerox to develop the Ethernet specification. Gordon Bell presented the Ethernet announcement with the famous mantra 'the network becomes the system'.

Strategic tierMinorTypeStrategic or Co-development Partner
Description

Digital Equipment Corporation contributed significantly to computing history preservation. DEC artifacts, books, brochures, manuals, memorabilia, photos, and presentations relating to DEC are archived at the Computer History Museum in Mountain View, CA.

Strategic tierMajorTypeOthers
Description

Digital Equipment Corporation was acquired by Compaq in 1998. This was a major acquisition that marked the end of DEC's 41-year existence as an independent company.

Strategic tierMajorTypeOthers
Description

Compaq, which had acquired DEC, was subsequently acquired by HP in 2002, effectively ending DEC's corporate existence as HP acquired Compaq's assets including DEC's intellectual property and customer base.

Recent move6 records

Each record includes

Date, Type, Title, Description, Source

Expansion highlight4 records

Each record includes

Type, Description

Peers10 records
TypeDirect peer
Description

Sun Microsystems was a direct peer in the workstation and server market, producing UNIX-based systems that competed with DEC's VAX line. Both companies targeted scientific and engineering customers with high-performance computing platforms in the 1980s and 1990s.

TypeBroad incumbent
Description

HP was a broad incumbent in computing that ultimately acquired DEC's assets via the Compaq acquisition chain (1998, 2002). HP competed with DEC in workstations, servers, and test/measurement computing throughout DEC's history.

TypeBroad incumbent
Description

IBM was the dominant incumbent in the computer industry throughout DEC's existence, and DEC was consistently the #2 computer company behind IBM. Both served enterprise computing customers with overlapping but differentiated product lines (mainframes vs. minicomputers).

TypeDirect peer
Description

SGI was a direct peer in the high-performance workstation market, competing with DEC's VAX systems for scientific visualization and engineering customers. Both companies were part of the broader minicomputer-to-workstation transition in the late 1980s and early 1990s.

TypeDirect peer
Description

Prime Computer was a direct minicomputer peer to DEC, producing 32-bit virtual memory systems in the 1970s and 1980s. Both companies targeted interactive computing and CAD/CAM applications with similar mid-range systems.

TypeDirect peer
Description

Tandem Computers was a direct peer producing fault-tolerant minicomputers for online transaction processing. Both companies competed in the enterprise minicomputer market during the 1970s and 1980s with similar customer profiles.

TypeDirect peer
Description

Compaq was a direct peer in personal computing and servers that ultimately acquired DEC in 1998 for approximately $9.6 billion. Compaq represented the PC-based computing paradigm that challenged DEC's minicomputer franchise throughout the late 1980s and 1990s.

TypeDirect peer
Description

Data General was a direct minicomputer competitor to DEC, founded in 1968 and producing the Nova and Eclipse lines. Both companies targeted scientific, engineering, and business computing customers with similar 16-bit and 32-bit architectures during the same era.

TypeDirect peer
Description

Apollo Computer was a direct peer in the networked workstation market that competed with DEC's VAXstation products. Both companies targeted engineering workstations and were eventually absorbed into HP's portfolio.

TypeDirect peer
Description

Wang Laboratories was a direct peer to DEC in the minicomputer and office computing market, specializing in word processing and business computing systems. Both companies competed for enterprise customers with proprietary architectures during the 1970s and 1980s.

Market position
Strengths3 records

Each record includes

Headline, Details, Source

Weaknesses4 records

Each record includes

Headline, Details, Source

Competitive moat5 records

Each record includes

Type, Details

Key risks5 records

Each record includes

Headline, Details, Source

Key highlights6 records

Each record includes

Headline, Details, Source

Customer concentration

Classification, Details

Segment2 records

Each record includes

Title, Type, Primary, Description, Pain point addressed, Use case, Source

Ideal customer profile2 records

Each record includes

Profile, Firmographic size, Sales motion, Sales cycle length, Buying structure, Purchase trigger, Buyer persona, Geography, Industry vertical, Primary use case, Description, Pain points, Evidence proof points, Target buyer

Technology focused
Yes
API detail
Has APIbool
No

Docs URL, Description

AI maturity
App detail

Has app

Feature4 records

Each record includes

Title, Differentiator, Description, Source

Core technology
Revenue estimate
Valuation estimate
Number of profiles
No data
No data
Funding overview

Funding stage, Last funding date, Total funding USD

Funding rounds

Each record includes

Round, Amount USD, Date, Pre money valuation, Total investors, Investors, News

Investors

Each record includes

Name, Type, Date of entry, Rounds participated, Website

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Each record includes

Name, Acquisition type, Announced date, Completed date, Status, Website, News

Investment

Each record includes

Name, Round, Announced date, Lead investor, Website, News

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Digital Equipment Corporation

Minicomputer Systemsgordonbell.azurewebsites.net

Digital Equipment Corporation (DEC) was a pioneering American minicomputer company (1957–1998) that built the PDP and VAX product lines, co-invented Ethernet, and served scientific, engineering, and enterprise customers before being acquired by Compaq and then HP.

What Digital Equipment Corporation does

Digital Equipment Corporation (DEC) was a pioneering American computer hardware company founded in 1957 in Maynard, Massachusetts by Ken Olsen and Harlan Anderson. DEC created the minicomputer category of computing, producing a succession of systems including the PDP-1 (1960), the PDP-4 through PDP-16 series, the time-sharing DECsystem-10, and ultimately the 32-bit VAX (Virtual Address Extension) family, which became the company's flagship line. The PDP-11, introduced in 1970, and the VAX, architected under VP of R&D Gordon Bell, established durable architectural standards for minicomputer design and were accompanied by software such as the RT-11 real-time operating system. DEC also co-invented Ethernet through its DIX partnership with Intel and Xerox, with the standard announced in February 1982.

DEC generated revenue primarily through the sale of minicomputer hardware and software (including its VMS operating environment) to scientific, engineering, and business customers. Distribution was handled through a global direct enterprise field-sales organization, augmented by value-added resellers and system integrators, with marketing executed via trade publications, technology conferences, and direct customer engagement. At its peak, DEC was the second-largest computer company after IBM, competing in horizontal segments spanning research/engineering and business/enterprise computing. The company was acquired by Compaq in 1998 after 41 years of independent operation, and Compaq itself was acquired by Hewlett-Packard in 2002, ending DEC's corporate existence.

Digital Equipment Corporation firmographics

Firmographics
Name
Digital Equipment Corporation
Legal name
Digital Equipment Corporation
Website
https://gordonbell.azurewebsites.net
Company type
Private
Founded year
1957
Operating status
Acquired
Headcount range
5,001–10,000 employees
Short description
Digital Equipment Corporation (DEC) was a pioneering American minicomputer company (1957–1998) that built the PDP and VAX product lines, co-invented Ethernet, and served scientific, engineering, and enterprise customers before being acquired by Compaq and then HP.
Ownership category
akta.pro rank

Where Digital Equipment Corporation is headquartered

Location

Headquarters

HQ city
Maynard
HQ country
United States
HQ region
North America

Offices1 record

Markets served

Digital Equipment Corporation business model

Business model
GTM type
B2B
Offering type
Hardware or Manufacturing
Cost components
Supply Chain, Personnel, Technology or R&D, Operations, Marketing or Sales

Revenue model

  1. Computer Hardware Sales: DEC generated revenue primarily through selling minicomputer hardware systems including PDP and VAX line of computers to scientific, engineering, and business customers.
  2. Software Licensing: DEC sold software products and operating environments including VMS and related software for their computer systems.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels3 records

Digital Equipment Corporation product offering

Product offering

Core offering

Digital Equipment Corporation (DEC) designed, manufactured, and sold minicomputer systems and related software, most notably the PDP series and the VAX 32-bit family, along with operating systems such as RT-11. The company also co-developed the Ethernet networking standard with Intel and Xerox, targeting scientific, engineering, and business computing customers.

Product overview

Digital Equipment Corporation (DEC) was a pioneering American hardware company (1957-1998) that produced a portfolio of minicomputers, microcomputers, and related software. The core products included the PDP series (PDP-1 through PDP-16), the VAX (Virtual Address Extension) family which was the flagship 32-bit system, and DECsystem-10. These were complemented by operating systems like RT-11. Gordon Bell, who served as VP of R&D, was instrumental in developing key architectural innovations including the PDP-11's new minicomputer architecture and the VAX computing environment. DEC pioneered time-sharing computing, multiprocessor systems, and contributed to Ethernet standards development. The company was eventually acquired by Compaq in 1998 and then by HP in 2002.

Differentiator

Problem solved

Functional benefit

Products and services

  • PDP-1 (Programmed Data Processor-1) One of the first time-sharing computers and minicomputers. Gordon Bell worked on PDP-1 and authored the F-25 PDP-1 Manual for I/O in 1960.
  • PDP-4 A minicomputer produced by DEC in the early 1960s.
  • PDP-5 One of the first minicomputers, mentioned in historical context of minicomputer start-ups.
  • PDP-6 One of the first multiprocessor and time-sharing computers; antecedent to PDP-10.
  • PDP-10 Time-sharing computer system evolved from PDP-6, developed in the 1960s-1970s.
  • PDP-11 A groundbreaking 16-bit minicomputer that established DEC's architecture philosophy. Gordon Bell co-authored the seminal paper 'A New Architecture for Mini-Computers -- The DEC PDP-11' in 1970.
  • VAX (Virtual Address Extension) 32-bit virtual memory minicomputer that became DEC's flagship product. Gordon Bell was responsible for the VAX Computing Environment as VP of R&D. The VAX Strategy document was written in October 1978 by Gordon Bell.
  • DECsystem-10 Multi-user time-sharing system. Gordon Bell co-authored 'The Evolution of the DECsystem 10' published in Communications of the ACM, January 1978.
  • RT-11 RT-11 real-time operating system with Introduction Manual (1977) and System User's Guide (1977).

Companies that use Digital Equipment Corporation

Customer profile

Segments2 records

Ideal customer profiles2 records

Digital Equipment Corporation technology and API

Technology

Technology focussed Yes

API detail

Has API
No
API docs
API detail

Core technology

AI maturity

App detail

Feature4 records

Digital Equipment Corporation partnerships and signals

Strategic signal

Partnerships

Five partnerships are on record, tiered core, minor and major.

  • IntelcoreTechnology or Integration · 1 January 1980Digital Equipment Corporation collaborated with Intel and Xerox to develop and publish the Ethernet specification. Gordon Bell from DEC, Robert Noyce from Intel, and Ronald Liddle from Xerox formed the DIX group and announced Ethernet in February 1982 in New York City.
  • XeroxcoreTechnology or Integration · 1 January 1980Digital Equipment Corporation collaborated with Intel and Xerox to develop the Ethernet specification. Gordon Bell presented the Ethernet announcement with the famous mantra 'the network becomes the system'.
  • Computer History MuseumminorStrategic or Co-development PartnerDigital Equipment Corporation contributed significantly to computing history preservation. DEC artifacts, books, brochures, manuals, memorabilia, photos, and presentations relating to DEC are archived at the Computer History Museum in Mountain View, CA.
  • CompaqmajorOthersDigital Equipment Corporation was acquired by Compaq in 1998. This was a major acquisition that marked the end of DEC's 41-year existence as an independent company.
  • HP (Hewlett-Packard)majorOthersCompaq, which had acquired DEC, was subsequently acquired by HP in 2002, effectively ending DEC's corporate existence as HP acquired Compaq's assets including DEC's intellectual property and customer base.

Scale indicators3 records

Recent moves6 records

Expansion highlights4 records

Digital Equipment Corporation competitors and assessment

Company assessment

Direct peers

  • Sun Microsystems: Sun Microsystems was a direct peer in the workstation and server market, producing UNIX-based systems that competed with DEC's VAX line. Both companies targeted scientific and engineering customers with high-performance computing platforms in the 1980s and 1990s.
  • Silicon Graphics (SGI): SGI was a direct peer in the high-performance workstation market, competing with DEC's VAX systems for scientific visualization and engineering customers. Both companies were part of the broader minicomputer-to-workstation transition in the late 1980s and early 1990s.
  • Prime Computer: Prime Computer was a direct minicomputer peer to DEC, producing 32-bit virtual memory systems in the 1970s and 1980s. Both companies targeted interactive computing and CAD/CAM applications with similar mid-range systems.
  • Tandem Computers: Tandem Computers was a direct peer producing fault-tolerant minicomputers for online transaction processing. Both companies competed in the enterprise minicomputer market during the 1970s and 1980s with similar customer profiles.
  • Compaq Computer Corporation: Compaq was a direct peer in personal computing and servers that ultimately acquired DEC in 1998 for approximately $9.6 billion. Compaq represented the PC-based computing paradigm that challenged DEC's minicomputer franchise throughout the late 1980s and 1990s.
  • Data General: Data General was a direct minicomputer competitor to DEC, founded in 1968 and producing the Nova and Eclipse lines. Both companies targeted scientific, engineering, and business computing customers with similar 16-bit and 32-bit architectures during the same era.
  • Apollo Computer: Apollo Computer was a direct peer in the networked workstation market that competed with DEC's VAXstation products. Both companies targeted engineering workstations and were eventually absorbed into HP's portfolio.
  • Wang Laboratories: Wang Laboratories was a direct peer to DEC in the minicomputer and office computing market, specializing in word processing and business computing systems. Both companies competed for enterprise customers with proprietary architectures during the 1970s and 1980s.

Broad incumbents

  • Hewlett-Packard (HP): HP was a broad incumbent in computing that ultimately acquired DEC's assets via the Compaq acquisition chain (1998, 2002). HP competed with DEC in workstations, servers, and test/measurement computing throughout DEC's history.
  • IBM: IBM was the dominant incumbent in the computer industry throughout DEC's existence, and DEC was consistently the #2 computer company behind IBM. Both served enterprise computing customers with overlapping but differentiated product lines (mainframes vs. minicomputers).

Market position

Strengths3 records

Weaknesses4 records

Competitive moat5 records

Key risks5 records

Key highlights6 records

Customer concentration

Digital Equipment Corporation financial estimates

Financial estimate

Revenue estimate

Valuation estimate

Digital Equipment Corporation leadership team

Management profile

Number of profiles

Digital Equipment Corporation funding detail

Funding detail

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

Digital Equipment Corporation M&A and investment

M&A and investment

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Digital Equipment Corporation

What does Digital Equipment Corporation do?

Digital Equipment Corporation (DEC) designed, manufactured, and sold minicomputer systems and related software, most notably the PDP series and the VAX 32-bit family, along with operating systems such as RT-11. The company also co-developed the Ethernet networking standard with Intel and Xerox, targeting scientific, engineering, and business computing customers.

Is Digital Equipment Corporation a public or private company?

Digital Equipment Corporation is a private company. It is classified as public and is currently acquired.

When was Digital Equipment Corporation founded?

Digital Equipment Corporation was founded in 1957. It employs 5,001 to 10,000 people.

Where is Digital Equipment Corporation based?

Digital Equipment Corporation is headquartered in Maynard, United States, in the North America region.

How does Digital Equipment Corporation make money?

Two revenue lines are on record. Computer Hardware Sales are the primary driver. The others are software Licensing.

Who are Digital Equipment Corporation's main competitors?

Direct peers on record are Sun Microsystems, Silicon Graphics (SGI), Prime Computer, Tandem Computers, Compaq Computer Corporation, Data General, Apollo Computer and Wang Laboratories. Broad incumbents are Hewlett-Packard (HP) and IBM.

Does Digital Equipment Corporation have an API?

No public API is recorded for Digital Equipment Corporation.

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Live signals
WikipediaKarl Compton: Difference between revisionsThe article details the career of Karl Compton, highlighting his pivotal role in establishing the MIT Radiation Laboratory during World War II to develop radar technology and his subsequent transformation of MIT into a major research university. It also notes his co-founding of the American Research and Development Corporation, which provided early seed funding for Digital Equipment Corporation. The text covers his educational background, wartime contributions, and lasting legacy in American science and industry.BostonGlobe.comFrom minicomputers to quantum computers: Mass. tech's 35-year reinventionA retrospective analysis examines the decline of Massachusetts' historic minicomputer industry, noting that companies like Data General, Digital Equipment, and Wang Laboratories failed to adapt to the PC revolution and were subsequently acquired or shut down. Despite these losses, the state's tech sector has reinvented itself into a global hub for biotech, robotics, cybersecurity, and artificial intelligence. The region's current success is attributed to its elite universities and venture capital ecosystem rather than the survival of legacy hardware manufacturers.The Times of IndiaIn the 1970s, one engineer created Ethernet, the networking technology that changed how computers connectIn 1973, engineer Robert Metcalfe and colleague Dave Boggs developed Ethernet at Xerox's Palo Alto Research Center to connect computers for data sharing, using a coaxial cable system with theoretical speeds of nearly three megabits per second. Metcalfe later co-founded 3Com Corporation in 1979 to commercialize Ethernet, and worked with Digital Equipment Corporation, Intel, and Xerox to establish it as an industry standard, leading to its formal IEEE 802.3 certification in 1983. The technology became the world's most widely used local area network, with 3Com achieving market leadership by 1987 following the successful 1982 launch of the EtherLink card for IBM PCs.36kr6 Types of Companies That Went Out of Business: Why You Should Avoid Rush Expansion Financing Before Learning Their LessonsThe article identifies six common startup failure factors: product-market misalignment, poor financial management, neglecting customer value, excessive competition, poor timing, and weak leadership. It cites examples like Webvan, Bed Bath & Beyond, and GM's Cruise, and advises founders to focus on fundamentals, build strong teams, and prioritize customer value.ConcordfuneralRobert Linden Travis, Jr. Obituary Jan 29, 2026Robert Linden Travis, Jr., an 84-year-old software engineer known for his work on the Apollo Space Program and roles at Digital Equipment Corporation, AltaVista, and Yahoo, passed away on January 29, 2026. He held patents in word processing and internet search software and is survived by his wife of 64 years, three children, and grandchildren. Funeral services are scheduled for summer in Maine, with donations requested to the Loon Echo Land Trust.ConcordfuneralEarl C. Van Horn, Jr. Obituary Jan 15, 2026Earl C. Van Horn, Jr., an electrical engineer and former IT business owner, passed away on January 15, 2026, at the age of 86 in Acton, Massachusetts. He had a long career involving roles at Digital Equipment Services and Hewlett-Packard before running his own IT services firm for over 25 years. The article serves as an obituary detailing his personal life, academic achievements at MIT, and community involvement.AllaboutcircuitsRadia Perlman: The Engineer Who Made Networks WorkRadia Perlman, a network engineer currently at Dell Technologies, is celebrated for designing the Spanning Tree Protocol (STP) while working at Digital Equipment Corporation to solve Ethernet loop issues. Her work established industry standards that enabled scalable and self-healing computer networks, forming a foundation of modern internet infrastructure.ZDNET JapanRadia Perlman, who made LANs work, honored in 'Hidden Heroes' seriesRadia Perlman was honored at an event in New York as part of the 'Hidden Heroes' series by Netguru, recognizing her creation of the spanning tree protocol (STP) nearly 40 years ago. The series, compiled by Steven Johnson, aims to highlight unsung innovators in computer technology rather than prominent business leaders. Perlman developed the foundational networking specification while working at Digital Equipment Corporation (DEC) to prevent network loops and enable scalable local area networks.PR NewswireHarvard Business School's Baker Library Announces New Collection: Personal Papers of Ken Olsen, founder of Digital Equipment Corporation (DEC)Harvard Business School's Baker Library and Gordon College announced a permanent loan of the Kenneth H. Olsen Collection, containing the personal papers of Digital Equipment Corporation (DEC) founder Ken Olsen. The collection documents DEC's history from 1957 to 1992 and includes materials related to American Research and Development Corporation (ARD), highlighting early venture capital developments.MIT Technology ReviewRadia Perlman ’73, SM ’76, PhD ’88Radia Perlman, a mathematician and MIT alumna, is recognized for her foundational work in network routing, including the invention of the spanning tree algorithm while at Digital Equipment Corp. Her contributions to creating robust algorithms for routers and switches enabled reliable data exchange across early computer networks. Perlman has been granted over 130 patents covering networking, security, and privacy technologies.