[Info-vax] OT: IA-128 ???

[Richard B. Gilbert]

P. Sture wrote:
> In article <4ada755e$0$273$14726298 at news.sunsite.dk>,
>  Arne Vajhøj <arne at vajhoej.dk> wrote:
> 
>> A VAX is 32 bit because the application use 32 bit virtual addresses.
>> Physical addresses is something else.
>>
>> I can not comment on PDP-11.
>>
>> I seem to recal that physical addresses of later VAX'es were bigger
>> than 32 bit, but 40 bit sounds too much - that would be 4 TB of RAM.
> 
> RSX-11 could address more than 16 bits to support extra RAM, but I 
> forget the details.
> 

I also!  I suppose RSX has it's place but it's not my place.  Trying to 
write real software to run on a box as limited as the PDP-11 was no fun!
Overlays?  Horror!!!!!!!!  And dog slow!

I grew up on 24 bit hardware, followed shortly thereafter with 32 bit 
hardware.