Editing 3B series computers (section)

{{short description|AT&T/Bell family of computers}}
{{use mdy dates|date=August 2021}}
{{use American English|date=August 2021}}
[[File:3B15 computer in a data center in Somerset, New Jersey (ca. 1997).jpg|thumb|320px|A 3B15 computer, circa 1997]]

The '''3B series computers'''<ref name=3Bseries.NYT840328>{{cite news |newspaper=[[The New York Times]]
|url=https://www.nytimes.com/1984/03/28/business/at-t-offers-its-computers.html
|title=AT&T Offers Its Computers
|author=Andrew Pollack |date=March 28, 1984}}</ref><ref name=3Bseries.RoyNYT890316/> are a line of minicomputers<ref name=3B2.600NYT870325>{{cite news
    |newspaper=[[The New York Times]]
    |url=https://www.nytimes.com/1987/03/25/business/company-news-digital-introduces-computer-series.html
    |title=Digital Introduces Computer Series
    |date=March 25, 1987}}</ref> made between the late 1970s and 1993 by [[AT&T Computer Systems]]' [[Western Electric]] subsidiary, for use with the company's [[UNIX]] operating system. The line primarily consists of the models 3B20, 3B5, 3B15, 3B2, and 3B4000. The series is notable for controlling a series of [[electronic switching system]]s for [[telecommunications]], for general computing purposes, and for serving as the historical software porting base for commercial UNIX.