Miscellaneous > The Lounge

Anybody know what this is?

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Calum:
This  Slym looks really cool!

and this laptop looks pretty smart too although a bit behind its time...

This RiscOS.org site that Ravuya posted seems really good, and they have a list of retailers in their "Hardware" section.

Here's one site offering a Risc computer for

voidmain:
On a RISC processor (reduced instruction set) the Mhz ratings have absolutely no comparison to the Mhz ratings on x86 based processors. They can do much more per cycle. I remember when we got our first IBM RS/6000s back around 1993 with the Power2 chips, the computational power blew anything else away yet the Mhz ratings were nothing to be excited about. We quickly migrated applications off our mainframe and onto the RS/6000 cluster. Ever hear of "Deep Blue" (IBM RS/6000 SP2)? Now I don't know how the RISC processors mentioned in this thread compare to the type I used to use but I can certainly say the Mhz ratings can't be compared to x86 Mhz ratings.

psyjax:
Even tho, coming from a MacOS background, we have been using RISC processors for years. A 233MHz RISC chip is something like a first generation iMac. Which, BTW, is still a great machine, but is no AMD/Intel killer.

voidmain:
Yes but I don't think the RISC processor architecture in the Mac was much like the IBM implementation.  Here's a good sheet on the RS/6000 processors:

http://www.mhpcc.edu/training/workshop/ibmhwsw/MAIN.html

Notice the one I was working with in 1993 (Power2) only operated at 66.6 MHz but performance was 254 MFLOPS. What do you have on a 1993 model Mac RISC processor? At that time they were running 6 instructions per clock cycle and I don't see it on that sheet but I believe it had a 256 bit data bus. Weren't the Macs running the PowerPC?  IBM had low end machines running the early versions of the PowerPC chip but they couldn't hold a candle to the performance of the Power2 chips. Power2 had many times the performance.

[ May 09, 2002: Message edited by: VoidMain ]

cahult:
The first Mac with a RISC-processor was Power Mac 6100/60 (60 MHz). It was introduced in early 1994. Someone once said to me that it was the equivalent of a Pentium 75 MHz.

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