Corrections to trivia

From: Allison J Parent <allisonp_at_world.std.com>
Date: Mon Oct 5 20:39:24 1998

< We haven't established a precise definition for microprocessor, but wha
< you seem to be talking about is a microcontroller, which is a complete
< system on a chip (i.e., CPU, memory, and I/O).

Ah, your catching on.

 CPU: central processing unit... says nothing about memory or IO.
 The CPU is an 8080.

 Microprocessor: Actually is a systems level concept and is generally
 refers to the whole box. The Altair8800 Microcomputer.

 Microcontroller: see above! The IMSAI IMP-48 microcontroller uses the
 Intel 8035 as its core.

The F8 (NOT the 3870) had bits and piices of the CPU scattered between a
minimum of two chips.

The 1800/1801 did the same as it was too much for one piece of silicon
at the time of design.

< AFAIK, the first true microcontroller (CPU, memory, and I/O on one monol
< IC) was the Intel 8048.

BZZT! TI TMS1000 and NEC uCOM4 both predate it.


So the F14 CADC is a microcomputer. The LSI-11 is a microcomputer.
The Z80 is a CPU as is the 80586.


Allison
Received on Mon Oct 05 1998 - 20:39:24 BST