Chips that changed the world

Andrew Burton aliensrcooluk at
Sat May 2 12:01:04 CDT 2009

Thanks for the link, that was a very interesting read.
However, isn't there a mistake in the Motorola 68000 description. Doesn't it use 32-bit addressing and not 24-bit?

"The hybrid 16-bit/32-bit MC68000
                packed in 68 000 transistors, more than double the
                number of Intel’s 8086. It had internal 32‑bit
                registers, but a 32-bit bus would have made it
                prohibitively expensive, so the 68000 used 24-bit
                address and 16-bit data lines. "

Andrew B
aliensrcooluk at

--- On Sat, 2/5/09, Richard A. Cini <rcini at> wrote:
From: Richard A. Cini <rcini at>
Subject: Chips that changed the world
To: "MARCH-Post" <midatlanticretro at>, "Discussion: On-Topic and Off-Topic Posts" <cctalk at>
Date: Saturday, 2 May, 2009, 1:49 PM


    For those interested, IEEE has an article about the 25 chips that
changed the world. The NE555 is #1 and the 6502 is #2.


Rich Cini
Collector of Classic Computers
Build Master and lead engineer, Altair32 Emulator

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