AT&T

American Telephone and Telegraph Company

History

In 1991 AT&T bought National Cash Register (NCR).

Operating Systems

• Bell Laboratories: UNIX
• Plan 9

• Documenter's WorkBench (DWB) - original UNIX® System document formatting package

Programming Languages

• AWK
• C
• C++
• Keynote
• LISP-TC
• PAISLey
• SNOCONE

DBMS

• UNITY-TC

Open Source

• AT&T Software Technology (AST) toolkit [1]
• UWIN - UNIX application build environement for Microsoft Windows

Links

• https://github.com/att