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3B series computers

Index 3B series computers

The 3B series computers were a line of micro-programmable minicomputers produced by AT&T Computer Systems' Western Electric subsidiary. [1]

33 relations: Alcatel-Lucent, Altos Computer Systems, AMD Am2900, AT&T Computer Systems, AT&T Unix PC, Bell Labs, Bellmac 32, Desktop computer, Email, Floppy-disk controller, High availability, IEEE Xplore, Magnetic tape, Microcode, Modified Frequency Modulation, Motorola, Motorola 68010, Multi-Environment Real-Time, Multiprocessing, No. 4 Electronic Switching System, Quarter-inch cartridge, Real-time operating system, Redundancy (engineering), SCSI, Solaris (operating system), Storage Module Device, Sun Microsystems, Unix, UNIX System V, Western Electric, Workstation, 1984 Summer Olympics, 5ESS Switching System.


Alcatel-Lucent S.A. was a French global telecommunications equipment company, headquartered in Boulogne-Billancourt, France.

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Altos Computer Systems

Altos Computer Systems was founded in 1977 by David G. Jackson and Roger William Vass Sr.

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AMD Am2900

Am2900 is a family of integrated circuits (ICs) created in 1975 by Advanced Micro Devices (AMD).

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AT&T Computer Systems

AT&T Computer Systems is the generic name for American Telephone & Telegraph's unsuccessful attempt to compete in the computer business.

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AT&T Unix PC

The 3B1 (also known as the PC7300, or Unix PC) was a Unix workstation computer originally developed by Convergent Technologies (later acquired by Unisys), and marketed by AT&T in the mid- to late-1980s.

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Bell Labs

Nokia Bell Labs (formerly named AT&T Bell Laboratories, Bell Telephone Laboratories and Bell Labs) is an American research and scientific development company, owned by Finnish company Nokia.

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Bellmac 32

The Bellmac 32 was a microprocessor developed by Bell Labs's processor division in 1980, implemented using CMOS technology and was the first microprocessor that could move 32 bits in one clock cycle.

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Desktop computer

A desktop computer is a personal computer designed for regular use at a single location on or near a desk or table due to its size and power requirements.

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Electronic mail (email or e-mail) is a method of exchanging messages ("mail") between people using electronic devices.

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Floppy-disk controller

A floppy-disk controller (FDC) is a special-purpose chip and associated disk controller circuitry that directs and controls reading from and writing to a computer's floppy disk drive (FDD).

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High availability

High availability is a characteristic of a system, which aims to ensure an agreed level of operational performance, usually uptime, for a higher than normal period.

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IEEE Xplore

IEEE Xplore is a research database for discovery and access to journal articles, conference proceedings, technical standards, and related materials on computer science, electrical engineering and electronics, and allied fields.

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Magnetic tape

Magnetic tape is a medium for magnetic recording, made of a thin, magnetizable coating on a long, narrow strip of plastic film.

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Microcode is a computer hardware technique that imposes an interpreter between the CPU hardware and the programmer-visible instruction set architecture of the computer.

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Modified Frequency Modulation

Modified Frequency Modulation, commonly MFM, is a run-length limited (RLL) coding scheme used to encode the actual data-bits on most floppy disks.

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Motorola, Inc. was an American multinational telecommunications company founded on September 25, 1928, based in Schaumburg, Illinois.

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Motorola 68010

The Motorola MC68010 processor is a 16/32-bit microprocessor from Motorola, released in 1982 as the successor to the Motorola 68000.

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Multi-Environment Real-Time

Multi-Environment Real-Time (MERT) was a hybrid time-sharing/real-time operating system developed in the 1970s at Bell Labs for use in embedded minicomputers (in particular PDP-11s).

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Multiprocessing is the use of two or more central processing units (CPUs) within a single computer system.

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No. 4 Electronic Switching System

The No.

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Quarter-inch cartridge

Quarter inch cartridge tape (abbreviated QIC, commonly pronounced "quick") is a magnetic tape data storage format introduced by 3M in 1972, with derivatives still in use as of 2016.

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Real-time operating system

A real-time operating system (RTOS) is an operating system (OS) intended to serve real-time applications that process data as it comes in, typically without buffer delays.

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Redundancy (engineering)

In engineering, redundancy is the duplication of critical components or functions of a system with the intention of increasing reliability of the system, usually in the form of a backup or fail-safe, or to improve actual system performance, such as in the case of GNSS receivers, or multi-threaded computer processing.

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Small Computer System Interface (SCSI) is a set of standards for physically connecting and transferring data between computers and peripheral devices.

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Solaris (operating system)

Solaris is a Unix operating system originally developed by Sun Microsystems.

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Storage Module Device

Storage Module Drive (SMD) is a family of storage devices (hard disk drives) that were first shipped by Control Data Corporation in December 1973 as the CDC 9760 40 MB (unformatted) storage module disk drive.

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Sun Microsystems

Sun Microsystems, Inc. was an American company that sold computers, computer components, software, and information technology services and created the Java programming language, the Solaris operating system, ZFS, the Network File System (NFS), and SPARC.

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Unix (trademarked as UNIX) is a family of multitasking, multiuser computer operating systems that derive from the original AT&T Unix, development starting in the 1970s at the Bell Labs research center by Ken Thompson, Dennis Ritchie, and others.

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UNIX System V

UNIX System V (pronounced: "System Five") is one of the first commercial versions of the Unix operating system.

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Western Electric

Western Electric Company (WE, WECo) was an American electrical engineering and manufacturing company that served as the primary supplier to AT&T from 1881 to 1996.

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A workstation is a special computer designed for technical or scientific applications.

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1984 Summer Olympics

The 1984 Summer Olympics, officially known as the Games of the XXIII Olympiad, was an international multi-sport event that was held from July 28 to August 12, 1984, in Los Angeles (LA), California, United States.

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5ESS Switching System

The 5ESS Switching System is a Class 5 telephone electronic switching system developed by Western Electric for the American Telephone and Telegraph Company (AT&T) and the Bell System in the United States.

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Redirects here:

3B (ATT Computers), 3B Computers, 3B2, 3B20C, 3B20D, 3B21D, AT&T 3B2.


[1] https://en.wikipedia.org/wiki/3B_series_computers

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