Hi, Richard.
Not exactly correct. The first home computers had what IBM called a 386.
Then went to a 486.
You're starting a generation or two late. :^{
Depends on your definition of "home computers".
My first computer was the original TRS-80, in 1977, with the Z80 chip from
Zilog, which was an improvement on Intel's 8080. IBM's first PC (Personal
Computer) used the Intel 8088 CPU, which was 16-bit internally but
communicated over an 8-bit bus, requiring each 16-bit word to be divided
into two 8-bit bytes, transmitted, then reassembled at the receiving end.
The 8086 (in the AT, for Advanced Technology) was the first true 16-bit chip
used by IBM, as I recall. And that was still long before the 32-bit 80386,
or even the 80286.
Most people overlook the 80186, which was a true 16-bit CPU with 16-bit data
path. That's what is in the Tandy 2000, which I bought in 1983 (and still
have in the "museum" in my closet). This was from Tandy, not IBM, of
course, and used TRS-DOS, not MS-DOS, and was not bothered by the 64-KB
limit on usable RAM. My machine eventually was upgraded to 768 KB RAM,
which was rare in those days. The Tandy 2000 was featured in ads in
Creative Computing and other magazines of the day with Bill Gates saying it
would be the perfect machine for his forthcoming new "Windows", which would
be released Real Soon Now. And, yes, I did run Windows (1.0) on it - but
not long - before Windows 2.0 and, at last, Windows 3.1, the first really
productive version.
This is from 30+ year-old memory, so there may be some slight slippage, but
I'm sure it's mostly correct.
But Microsoft still should have called it "x32" instead of "x86".
RC
--
R. C. White, CPA
San Marcos, TX
(e-mail address removed)
Microsoft Windows MVP (2002-9/30/10)
Windows Live Mail Version 2011 (Build 15.4.3508.1109) in Win7 Ultimate x64
SP1
"richard" wrote in message
x86 refers to the 32 bit architecture/instruction-set from Intel.
x64 refers to the compatible 64 bit architecture, I think this might have
originated from AMD but I'm not sure.
In both cases other manufactures make compatible devices so the
originating
manufacturer doesn't matter.
This article might help:
http://everything.explained.at/X86_architecture/
although it focuses more on x86 and less on x64.
The key thing if you are downloading software is that x86 refers to 32
bit,
and x64 to 64 bit.
If your PC is less than 5(ish) years old then its hardware is probably 64
bit, but it might be running a 32 bit operating system in which case if
given a choise when downloading software you should go for the x86
version.
If your are running a 64 bit operating system then go for the x64 version
if
one exists, but you might (depending on what it is) still be able to run
with the 32 bit (x86) version.
Hope this helps.
Not exactly correct. The first home computers had what IBM called a 386.
Then went to a 486.
I remember seeing an old show from the 80's where the line was, "A 686?
Hell, the 486 was just put on the market and you've got a 686? What
happened to the 586?"
Then pentium was introduced. As a response to the more powerful AMD.
Beginning with the 80386 chip in 1978, which was a 16 bit one, IBM then
began advancing the chips towards 32 bit.
Quite frankly, Microsoft's use of x86 and x64 is a nostalgic misgnomer.
Where x86 technically refers to the chip, MS is referring to the 32 bit
stuff, whic is wrong because in the case of windows, it is the operating
system software that is either 32 or 64 bit which has nothing to do with
the chip hardware.