Peter's z80.eu site blog
Search 

Please read ! 
If NO IMAGES will be shown, use www.z80.eu/blog instead of blog.z80.eu

Please note also - THIS BLOG ENDS HERE WITH THE LAST ENTRY FROM NOVEMBER 9th 2021.

I have prepared a new blog with wordpress at https://vintagecomputing.info !!!

Thank you.
Fastest 8086 PC ever: NEC PC-98DO+ (not an AT nor 386, but with 16MHz) 
Sunday, March 10, 2019, 05:06 PM
Posted by Administrator
Not well known in Europe, but in Japan: The fastest 8086 PC ever is a NEC PC-98DO+ (one of the later models of the PC-9801 series), build around 1990.
The PC has a NEC V33A CPU running at 16 MHz, which is something between a 8086 and a 80186, but not an AT compatible (or higher). It has an EGA graphics card, a YM2608 (OPNA) sound chip/card, and of course already using a HDD, too.

The design looks like the later EPSON PC clone design, but we know, NEC build their PCs a bit before EPSON did it, too.
Unfortunately the V33A CPU is *not* pin compatible with the standard 8086, instead, it has a separate address and data bus, but has the same instruction set as the NEC V30 (which is pin compatible with the 8086). May be it is possible to build a CPU adapter for it, but it's far too late to have still a high demand for this ;-)

add comment ( 112 views )   |  permalink   |  related link   |   ( 3 / 1671 )

<<First <Back | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | Next> Last>>