XPost: alt.folklore.computers
From: ThatWouldBeTelling@thevillage.com
Dennis Boone wrote:
> > The LSI11 uses four 40-pin chips from the MCP-1600 chipset (which is
> > fascinating in itself ) for a
> > total of 160 pins; and it supported only 16 address bits without extra
> > chips. That was certainly even more expensive (and also slower and
> > less capable) than what I suggest above, but it was several years
> > earlier, and what I envision was not possible in one chip then.
>
> Maybe compare 808x to something more in its weight class? The 8-bit
> 8080 was 1974, 16-bit 8086 1978, 16/8-bit 8088 1979.
>
> The DEC F-11 (~1979) and J-11 (~1982) microprocessor designs were
> capable of 22 bit addressing on a single 40-pin carrier.
>
> De
For those interested in a blast from the past, on the Wikipedia WD16 page
https://en.wikipedia.org/wiki/Western_Digital_WD16
is a link to a copy of Electronic Design magazine from 1977 which
has a set of articles on microprocessors starting on page 60.
Its a nice summary of the state of the microprocessor world circa 1977.
https://www.worldradiohistory.com/Archive-Electronic-Design/1977
Electronic-Design-V25-N21-1977-1011.pdf
Table 1 General Purpose Microprocessors on pg 62 shows 8 different
16-bit microprocessor chip sets including the WD16.
Table 3 on pg 66 show ~11 bit slice families that can be used to build
larger microcoded processors, such as AMD 2900 4-bit slice series.
It also has many data sheets on various micros starting on pg 88
and 16-bit ones starting on pg 170, mostly chips you never heard
on like the Ferranti F100L, but also some you'll know like the
Data General MicroNova mN601 on page 178.
The Western Digital WD-16 is on pg 190.
--- SoupGate-Win32 v1.05
* Origin: you cannot sedate... all the things you hate (1:229/2)
|
