16 Dec
2008
16 Dec
'08
7:17 p.m.
Chuck Guzis wrote:
On 16 Dec 2008 at 10:42, Dave McGuire wrote:
I've always wondered why the National IMP-16 chipset is so widely
ignored. Remarkable for its time (1973) in that it was a 16-bit
design.
Were there any 8008/8080 designs implemented without at least one
other member of the support chipset?
I have a Tektronix cartridge tape drive (ca 1977) here using an 8008.
There doesn't appear to be any other 8008-specific chips in it.
A 2708 EPROM, 8316 ROM, 2 2102 RAMs, 2 GI LSI chips of unknown function.
The rest is a mess of 74 TTL.
I'm reasonably well-acquainted with the 4004 family chips and their
inter-communication and execution cycle, but not so with the 8008.
On Dec 15, 2008, at 4:37 PM, Jos Dreesen / Marian
Capel wrote:
The i4004
is a controller, at least to me, because it is dependent
on a specific set of supporting ciruits (4001,40002 and 4003).
The 8008 is much more general purpose.
Hmm. I'll agree that it's quite limited, but it's certainly not
the only processor chip "set" in history.