Demo User Overview
This page introduces the pre-configured demo users available in OpenCloud. These users are designed to help you explore the platform’s features, test different roles, and experience OpenCloud from various perspectives without setting up new accounts.
Each demo user has specific permissions and access levels, allowing you to simulate real-world scenarios such as admin management, file sharing, and collaboration.
Below, you’ll find details about each user, including their roles and login credentials.
Name | User Name | Password | Role | Group membership |
---|---|---|---|---|
Dennis Ritchie | dennis | demo | Admin | basic-haters, programmers, unix-lovers, users |
Margaret Hamilton | margaret | demo | Space Admin | apollos, programmers, users |
Alan Turing | alan | demo | User | chess-lovers, machine-lovers, programmers, users |
Lynn Conway | lynn | demo | User | programmers, users, vlsi-lovers |
Mary Kenneth Keller | mary | demo | User | bible-readers, users |
Dennis Ritchie
OpenCloud Username: dennis
Role: Admin
📌 Co-developer of UNIX & inventor of the C programming language

- Studied physics and applied mathematics at Harvard University
- Worked at Bell Labs from 1967, where he developed the first version of the Unix operating system
- Died in 2011, but his influence on modern software development remains immeasurable
Margaret Hamilton
OpenCloud Username: margaret
Role: Space Admin
📌 Software pioneer & NASA developer

- Studied mathematics at Earlham College
- Developed the on-board flight software for NASA as a software engineer at MIT
- Her work was crucial to the success of the Apollo 11 mission in 1969
- From 1976 to 1984, she was the Managing Director of Higher Order Software (HOS)
Alan Turing
OpenCloud Username: alan
Role: User
📌 Father of modern computer science & codebreaker in the Second World War

- British logician, mathematician, and computer scientist
- Developed the theoretical foundations of modern computer technology
- Made a decisive contribution to the decryption of the German Enigma cipher
- Was discriminated against and persecuted because of his homosexuality
Lynn Conway
OpenCloud Username: lynn
Role: User
📌 Computer scientist & microchip design pioneer

- Studied electrical engineering at Columbia University
- Developed VLSI design methodology, revolutionizing microchip development
- Worked at IBM, but was dismissed after gender transition; later contributed at Xerox PARC
- Professor of electrical engineering and computer science at the University of Michigan
- Advocate for transgender rights and diversity in STEM fields
Mary Kenneth Keller
OpenCloud Username: mary
Role: User
📌 First woman with a PhD in computer science

- Was a nun and studied mathematics (Bachelor & Master of Science)
- First woman to work at Dartmouth College's Computer Science Center
- Founded and chaired the first computer science department at Clarke University, Iowa, for over 20 years