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I > IBM  > RT (6150)


This mini forum is intended to provide a simple means of discussion about the IBM  RT (6150) pong. If you want to share your own experience or memories, or add relevant information about this system: post a message!

  Click Here to add a message in the forum


Wednesday 1st April 2020
Darkstar (Germany)

Does anyone have an IPL ROM dump for the IBM RT PC?

Is there any emulator already existing? Contact me e.g. on Twitter under DarkStar_1337

Thursday 28th April 2016
Byron Adkins (Austin TX USA)

The original (170ns) processor card supported an optional floating point coprocessor card based on the National Semiconductor NS32081 FPU.

The next generation (100ns) processor card included a Motorola 68881 floating point coprocessor on the CPU card itself.

The final (80ns) processor card supported a huge double-card floating point coprocessor, again in the coprocessor slot.

If you search the Web for ''IBM SA23-1057'' you can download a PDF of the original RT product architecture. Note that the ROMP processor MMU, though a separate integrated circuit (at least initially), is tightly integrated with the RISC core and would not be called a co-processor today.

Tuesday 11th October 2011
drGspot (croatia)
skill exchange linux workshop

PowerPC story is far from over (2011.) ...from big box IBM iron (up to Power7)
to 8+2 core Cell in Playstation 3, 3 core in Xbox360, single core Nintendo Wii, up to 11th generation of AmigaOne x1000 (2 GHz 64bit dualcore, PCI-E 16x)
At IBM (Cloud/Linux) Forum we have just learned that 50 $ of TCP/IP traffic is done by non x86 chips...

Tuesday 15th February 2011
Shane Hill (Austin TX USA)

@Scott from the year 2003 - that may be true regarding RISC, however new technologies, such as pipelining and integrated instruction cache have made RISC obsolete for general computing applications.

Thursday 15th January 2009
Grady Owens (Socorro, NM, USA)

I was given an IBM RT/135 last year when a business firm was cleaning house$ unfortunately, they had lost both keyboard and mouse, meaning it would not boot (this machine cannot boot without a specific signal from the keyboard). After several months, a keyboard turned up, so I obtained it. Further unfortunate circumstances made themselves apparent upon booting - the firm had password-protected the system and completely forgotten about it. In order to solve this problem, I ended up making contact with several individuals on the original development team and a few other computer gurus who''ve had experience with this particular brand of machine. I now have full access, and the machine functions perfectly.

I absolutely adore this system$ for the time it was released it was a decently-impressive unit, and this one in particular is one of the best performance-wise IBM ever released. In addition, the firm sprung for the ultra-huge 5081-12 color monitor, for which I have been able to obtain an original copy of the maintenance manual. The engineering that went into this system was amazing, and it certainly shaped the computer market into what it is today by introducing both the RISC architecture and the original Model M keyboard layout. Truly a marvelous piece of computer history.

Saturday 19th August 2006
Marcus (Earth)

good!, I had one almost the same spec but I didn't have the pc processor, so I used the emulator program. It was my first 'pc', I used it for word processing - using 'e' and IBM internal email via a dial up link from home. Ran out of floor space, so come the millenium I junked it, gave the 5080 to a friend. BTW the big external disk was rare, but it was a 9336.

Friday 27th June 2003
Scott Wentzka (Minneapoils, MN (USA))

From the description: "Nowadays, RISC processors are quite no more used in desktop computers[...]". Well, the PowerPC chip used in all modern Macintoshes is a RISC chip, and the PowerPC can trace its lineage to the ROMP chip in the RT.

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