[comp.sys.atari.st] ATW - Atari Transputer Workstation

dyer@math.lsa.umich.edu (Jon Brode) (08/09/89)

My roommate went to Siggraph last week and all he brought me back was this
stupid ad...    :-)

Reprinted without permission. No guarantees of typographical accuracy or
truth of posted ad. In short, its not my fault!

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Atari Transputer Workstation -- Specification

Processor: Main Processor T800-20 (20 Mhz), the T800-20 can perform 10 million
instructions per second (MIP), has 4k on chip RAM and a floating point
arithmetic processor.

A 68000 (8 Mhz) processor relieves the T800-20 of all I/O tasks to be
performed. The 68000 I/O subsystem is connected to the T800 via a transputer
link, communicating at 20 Mhz.

Memory: The T800 has access to 4 Megabytes of fast dynamic RAM (120ns), which
can be expanded internally to 16 Megabytes (and eventually to 64)
The 68000 I/O subsystem is supported by 512K RAM, which can be expanded up to 4
Megabyte. [sic :-)]

Video Memory: 1 Megabyte of fast dual port dynamic RAM (100ns), ports connected
to both the main bus and video bus.

I/O: All I/O is the responsibility of the 68000 I/O subsystem. This subsystem
is based on the Atari Megs ST specification and is able to function
independent of the host T800 system. The following I/O is supported via the
68000 I/O subsystem.

RS232, DMA, Parallel port, Midi ports, Floppy Disk (3.5 or 5.25), SCSI, 
Mouse or Joystick port.

All standard Atari ST range peripherals can be connected. The 68000 subsystem
will be capable of supporting its own RGB or composite monitor independent of
the main system monitor.

Storage: The ATW will be supplied with a 40 Megabyte SCSI hard disk. Additional
or higher capacity drives will be available as options. [on the copy I have,
the 40 was crossed out and an 80 was written in]

Video: The ATW will support the following screen resolutions:

Mode	Resolution	BPP	Colours		Pallette	
0	1280x960	4	16		4096
1	1024x768	8	256		16 million
2	640x480		8	256		16 million
3	512x480		32	True colour

The graphics processor (called "Blossom") relieves the T800 of memory refresh
and data transformation between address spaces. The graphics processor is
capable of addressing the entire user RAM area in addition to the video RAM.

Additional graphic processor specifications:

Functions designed specifically with X-Windows in mind:
32x32 pixel mask. 16 bit wide functions on source and destination. 4 linear
comparisons on each pixel per cycle. Square area fill up to 32 Mpixels/sec.
Line drawing up to 32 Mpixels/sec. Trapezoid fill up to 32 Mpixels/sec.

Expansion: Both the main T800 system and the 68000 I/O subsystem can be
expanded : The 68000 bus is available for expansion via 1 slot. The T800
bus is available for expansion via 4 slots.

The T800 expansion slots will support additional transputers and RAM. The
T800 bus is also available for adding support cards such as X25, Ethernet,
Link X-Bar switch (based on C004/T212). Upto 12 additional T-800-20 can be
added to the ATW. There is no limit to the numbers of processors that can
be added externally.

Operating System: The operating system, Helios is a true distributed operating
system. There are no central services upon which the entire system relies,
thus making the system more fault tolerant. The distributed nature of Helios
is transparent to both the user and programs.

Helios is multi-tasking and designed specifically for a multi-transputer
architecture. The Helios environment, with its C shell and UNIX compatible
command set and libraries will be familiar to all UNIX programmers and users.
Helios is responsible for distributing program components to the appropriate
processor in the transputer network.

Languages: The ATW and Helios support all major languages including: C, 
Fortran 77, Modula 2, Lisp, Prolog, BASIC, Occam, Strand.

User Interface: X-Windows Version 1.1 runs on Helios. The X-Window system is
the standard for controlling window based graphics on workstations. It is 
flexible and powerful. A desktop representing data and facilities as icons will
simplify the UNIX style interface of Helios. A mouse pointer will enable easy
selection of icons and pop-up menus.



Whilst every care has been taken in the preparation of the information in this
document, no liability is accepted for any consequences of its use. In the
interests of continuing product development, the right is reserved to alter any
details of specification or equipment without notice.

Atari Corp. (UK) Limited, Atari House, Railway Terrace, Slough, Berkshire
SL2 5BZ. Telephone:(0753) 33344. Telex: 848401. Fax: (0753)822914.


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The box itself looks like a cross between a Mega and an RT. The keyboard and
mouse are Mega ripoffs. The CRT pictures says "NEC Multisync Plus". The
Guts of the machine are in a stand-up box. From the picture, I'd guess that
its about 1 foot wide, 1 yard high and 1 yard deep. The front of the box
has some lights, a reset button, a disk drive (looks like a 3 1/2), what
might be a 5.25 drive, and two key locks.

Jon Brode  --  dyer@math.lsa.umich.edu			Jesse '92
  Terminator Atari Archive Moderator