The uVAX-II CPU (KA630) ran at 5MHz (200ns machine cycle). On Sun, Jun 14, 2026 at 7:03 PM Jon Elson via cctalk <[email protected]> wrote:
> On 6/14/26 20:23, Mike Katz via cctalk wrote: > > > > > > IBM chose the 8088 because the 68000 was nearly equivalent > > to the 360 at the time and the NS32000 wasn't in silicon yet. > > I cloned a Nat Semi 16032 system running Genix and Xenix > back in about 1983. It was a total DOG. It took literally > FIVE MINUTES to load emacs. Now, of course, that was > limited by the 16-bit bus and slow Multibus I system bus, > but it was pretty awful. Maybe the 40 MB MFM disk drive was > also an issue. The CPU clock speed was 8 MHz. After being > frustrated with the performance, I jumped at the chance to > buy a uVAX-II CPU board and cobble together a system based > on that. Wow, that was a real boost. The uVAX-II CPU ran > at 32MHz, so that might indicate the performance jump. It > also had 32-bit access to memory. > > jon > > >
