Английская Википедия:AT&T UNIX PC

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Шаблон:Short description Шаблон:Infobox information appliance The AT&T UNIX PC is a Unix desktop computer originally developed by Convergent Technologies[1] (later acquired by Unisys),[2][3] and marketed by AT&T Information Systems in the mid- to late-1980s. The system was codenamed "Safari 4"[4] and is also known as the PC 7300, and often dubbed the "3B1". Despite the latter name, the system had little in common with AT&T's line of 3B series computers. The system was tailored for use as a productivity tool in office environments and as an electronic communication center.[5]

Hardware configuration

Файл:Att-3b1.JPG
Exterior of the AT&T 3B1
Файл:Mc68010.jpg
Motorola 68010 in an AT&T 7300 UNIX PC

PC 7300

The initial PC 7300 model offered a modest 512 KB[1] of memory and a small, low performance 10 MB hard drive.[6] This model, although progressive in offering a Unix system for desktop office operation, was underpowered and produced considerable fan and drive bearing noise even when idling. The modern-looking "wedge" design by Mike Nuttall was innovative, and the machine gained notoriety appearing in numerous movies and TV shows as the token "computer".[7]

AT&T 3B/1

An enhanced model, "3B/1", was introduced in October 1985 starting at Шаблон:USD.[8][3] The cover was redesigned to accommodate a full-height 67 MB hard drive.[3] This cover change added a 'hump' to the case, expanded onboard memory to 1 or 2 MB, as well as added a better power supply.[3]

S/50

Convergent Technologies offered an S/50 which was a re-badged PC 7300.[9]

Olivetti AT&T 3B1

British Olivetti released the "Olivetti AT&T 3B1 Computer" in Europe.[10]

Operating system

Файл:Att-unixpc-booting.ogv
Video of an AT&T PC 7300 booting
Файл:Att-pc7300-terminal.JPG
AT&T PC 7300 compiling and running a C program

The operating system is based on Unix System V Release 2,[1] with extensions from 4.1 and 4.2 BSD, System V Release 3 and Convergent Technologies.[3] The last release was 3.51.[3]

Windowing software (xt/layers) from SVR3 was provided to allow connection to a DMD 5620 graphics terminal.

Programming languages

Application software

  • Business Graphics (produces chart graphics from 20/20 spreadsheet data)
  • dBASE III (DBM)[6]
  • Informix (DBM)
  • Oracle (DBM)
  • Paint Power (drawing package)
  • Samna/AT&T Write Power 2 (word processor/spreadsheet)
  • Samna Plus (word processor/spreadsheet)[11]
  • SMART System (Office Suite)
  • Sound Presentations (presentation graphics)[12]

Spreadsheet software

Word processors

Games

Utility

Expansion cards

The UNIX PC has three proprietary S4BUS slots for expansion cards:

  • DOS-73 8086 co-processor card running at 8 MHz, Hercules graphics-compatible, with 512 KB RAM, an RS-232 COM2 port and optional 8087 math co-processor. Mouse, floppy, modem (on COM1), and printer are shared in a DOS session. MS-DOS 3.1 was included. This board was designed and built for AT&T by Alloy Computer Products of Framingham, MA.
  • RAM could be added using 512 KB RAM or 2 MB RAM cards, up to a maximum of 4 MB (2 MB on the motherboard and 2 MB on expansion cards).
  • EIA/RAM combo cards contained extra RAM (512 KB, 1 MB, or 1.5 MB) and two RS-232 serial ports.
  • Dual EIA port card (same card as the EIA/RAM but without the RAM sockets)
  • StarLAN 1 Mbit/s (1BASE5) network over twisted-pair wire local area network typically used in star format
  • Ethernet 10 Mbit/s LAN card (AMD Lance-based) using AUI connector and Wollongong TCP/IP stack/drivers
  • AUDIX Voice Power (“Speech Processor”) card allowed for the capture and digital recording of voice conversations. This was an option of the "Integrated Solution" package for the AT&T System 25 PBX where the UNIX PC served as the "Master Controller".[16]
  • PC/PBX Connection Package 4 for AT&T PBX System 75 or System 85
  • Floppy Tape card provided interface for 23 MB MFM Tape Cartridge Drive (e.g. Cipher FloppyTape 525)
  • QIC-02 card for tape backup
  • Expansion chassis card was hard-wired to the externally-powered Expansion Unit with five additional S4BUS slots (manufactured by Alloy Computer Products)
  • Piiceon Model SR-2048 (2 MB) RAM expansion card

Public domain software

The STORE! was a public domain software repository provided by AT&T and accessible via dialup UUCP.[3][17]

Emulation

The FreeBee emulator is available at Шаблон:GitHub.

Cancelled successor

Three prototypes of a follow-on "P6" model were alleged to have been built[18][3] with the specifications claimed to be:

See also

References

Шаблон:Reflist

External links

Партнерские ресурсы
Криптовалюты
Магазины
Хостинг
Разное

  1. ↑ 1,00 1,01 1,02 1,03 1,04 1,05 1,06 1,07 1,08 1,09 1,10 1,11 Шаблон:Cite magazine
  2. ↑ Шаблон:Cite web
  3. ↑ 3,00 3,01 3,02 3,03 3,04 3,05 3,06 3,07 3,08 3,09 3,10 3,11 3,12 3,13 3,14 3,15 3,16 3,17 3,18 3,19 3,20 3,21 3,22 3,23 3,24 3,25 Шаблон:Cite web
  4. ↑ Шаблон:Cite news
  5. ↑ AT&T, Select Code 999-601-311IS, AT&T UNIX PC Owner's Manual (1986)
  6. ↑ 6,00 6,01 6,02 6,03 6,04 6,05 6,06 6,07 6,08 6,09 6,10 6,11 Шаблон:Cite magazine
  7. ↑ Шаблон:Cite web
  8. ↑ Шаблон:Cite news
  9. ↑ Шаблон:Cite magazine
  10. ↑ Шаблон:Cite web
  11. ↑ Шаблон:Cite magazine
  12. ↑ 12,0 12,1 12,2 12,3 12,4 Шаблон:Cite magazine
  13. ↑ Шаблон:Cite web
  14. ↑ Шаблон:Cite web
  15. ↑ Шаблон:Cite web
  16. ↑ Шаблон:Cite book
  17. ↑ Шаблон:Cite web
  18. ↑ Шаблон:Cite web
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