Archived posting to the Leica Users Group, 2013/02/14

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Subject: [Leica] The History of the Personal Computer
From: photo at frozenlight.eu (Nathan Wajsman)
Date: Fri, 15 Feb 2013 07:28:48 +0100
References: <F6A063A0-9A6E-42B6-B562-2C90ECFD8196@acm.org> <ECF45563-C9D8-454D-B57F-0FEFF7E5C4FB@frozenlight.eu> <CAF8hL-GgV8Sr0atab2YRYH4SDdGLJZAKfu7gnZARdSQyL--+CQ@mail.gmail.com>

I think the 286 was called AT. The XT was still the original 8088, except 
that it had a hard disk built in. In effect, with my upgrade, I had turned 
my PC clone into an XT clone.

Cheers,
Nathan

Nathan Wajsman
Alicante, Spain
http://www.frozenlight.eu
http://www.greatpix.eu
PICTURE OF THE WEEK: http://www.fotocycle.dk/paws
Blog: http://nathansmusings.wordpress.com/

YNWA









On Feb 15, 2013, at 7:18 AM, Richard Man wrote:

> '85 was the 286, was it called the XT? "Blazingly" fast, for some
> definition of blazingly.
> 
> 
> 
> 
> On Thu, Feb 14, 2013 at 10:01 PM, Nathan Wajsman <photo at 
> frozenlight.eu>wrote:
> 
>> Thanks for an interesting lesson. I do remember the 1984 commercial; it
>> was also the year of another vintage commercial, Where is the beef?!
>> 
>> You have a typo in your text, the IBM PC was introduced in 1981, not 1985
>> (as you also imply in the previous paragraph). I remember buying my first
>> PC, a clone of the PC, in 1984 or 1985, a huge investment for a graduate
>> student. The following year, I upgraded the computer by replacing one of
>> the floppy drives with a 10 MB hard disk, another big investment.
>> 
>> Cheers,
>> Nathan
>> 
>> Nathan Wajsman
>> Alicante, Spain
>> http://www.frozenlight.eu
>> http://www.greatpix.eu
>> PICTURE OF THE WEEK: http://www.fotocycle.dk/paws
>> Blog: http://nathansmusings.wordpress.com/
>> 
>> YNWA
>> 
>> 
>> 
>> 
>> 
>> 
>> 
>> 
>> 
>> On Feb 14, 2013, at 11:30 PM, Herbert Kanner wrote:
>> 
>>> People often ask:  "What was the first personal computer?" That is a
>> futile query; it depends too much on the definition of personal computer, 
>> a
>> definition that can be quite flexible. So what I'm going to cover here are
>> the personal computers that had a significant effect on the future.
>>> 
>>> First is the Altair, circa 1975. It was advertised as a $400 kit in
>> Popular Electronics magazine and the company in Albuquerque, MITS, was
>> swamped with orders.
>>> http://gallery.leica-users.org/v/herbk1/L1002888.jpg.html
>>> 
>>> Two young squirts, Bill Gates and Paul Allen phoned MITS and said they
>> had a Basic (programming language) interpreter for the Intel 8080 chick
>> what was its "brain". They actually had not even started programming the
>> interpreter, but fortunately for their enterprise, MITS told them that it
>> would be about a month before they actually had an assembled and working
>> kit.
>>> When Paul Allen flew to Albuquerque and demonstrated the interpreter,
>> typing "Print 2+2" and getting back "4" the MITS people were astounded; it
>> was the first time they had actually seen their computer do anything.
>>> 
>>> Here is a picture of the Altair. Until the the programs enabling it
>> enabling it to read paper tape and use a keyboard are loaded, it had to be
>> programming one bit at a time using the toggle switches on the front, and
>> until it had the program for driving a printer, results had to be read one
>> bit at a time from those lights on the front. It was clearly originally
>> intended as a toy for a hobbyist.
>>> http://gallery.leica-users.org/v/herbk1/L1002887.jpg.html
>>> 
>>> The effect on the future was: Bill Gates and Paul Allen licensed MITS to
>> use their interpreter and created a company named Micro-Soft, later to be
>> renamed Microsoft.
>>> 
>>> Next is the Apple 1, circa 1976. Steve Wozniak built one for his
>> personal use, showed it off at the Homebrew Computer Club, and his buddy,
>> Steve Jobs, decided they could make some money from it. He beat the bushes
>> and found a store called The Byte Shop in Mountain View, CA that was
>> willing to take fifty of them at $500 each and mark them up 1/3, to an
>> unrounded price of $666.66. The Steves were under the illusion that all
>> they had to supply was a printed circuit board and a bag of parts. The 
>> Byte
>> Shop disillusioned them and a frantic assembly and testing operation
>> ensued. The printed card in front of the artifact is therefore erroneous,
>> and I'm waiting for the Museum to update it. The company, Apple Computer,
>> was created at that time. The user still had to furnish a keyboard and a
>> television set as the monitor.
>>> http://gallery.leica-users.org/v/herbk1/L1002890.jpg.html
>>> 
>>> The Apple 2 appeared one year later. You can already see the fine hand
>> of Steve Jobs sculpting the external appearance of the device. In the 
>> first
>> version, cassette tape was the medium for loading programs, but later
>> versions provided an operating system for floppy disks. Two years later,
>> 1979, Dan Bricklin and Bob Franskton market the first spread sheet,
>> Visicalc. It was so appealing that Apple salesmen could walk into a
>> business establishment with an Apple 2 under their arm, demonstrate
>> Visicalc, and the proprietor would be sufficiently impressed to buy the
>> computer. My personal opinion is that this success may have been what
>> persuaded IBM to produce the IBM PC in 1981; they realized that such
>> devices were than a toy and that there could be serious market for them.
>>> http://gallery.leica-users.org/v/herbk1/L1002895.jpg.html
>>> 
>>> 
>>> In 1985, IBM introduced the first model of the PC. To a certain extent,
>> their heart was not entirely in it. All IBM equipment, prior and since, 
>> was
>> completely manufactured by IBM: hardware, software, the lot. But the PC 
>> was
>> an exception. The computer chips came from Intel. The operating system 
>> came
>> from Microsoft, which bought it from Seattle Software. Except for the
>> physical box, the only IBM contribution was the software for communication
>> with a floppy disk, known as "BIOS" for Basic Input Output System.
>>> http://gallery.leica-users.org/v/herbk1/L1002897.jpg.html
>>> 
>>> Who can forget the amazing Super Bowl commercial that introduced the
>> Macintosh in 1984. Here is a picture of the original Macintosh model. It's
>> screen was monochrome and didn't even have gray scale; it could just draw
>> fine lines with remarkable resolution.
>>> http://gallery.leica-users.org/v/herbk1/L1002900_001.jpg.html
>>> 
>>> 
>>> Herbert Kanner
>>> kanner at acm.org
>>> 650-326-8204
>>> 
>>> Question authority and the authorities will question you.
>>> 
>>> 
>>> 
>>> 
>>> 
>>> _______________________________________________
>>> Leica Users Group.
>>> See http://leica-users.org/mailman/listinfo/lug for more information
>>> 
>> 
>> 
>> _______________________________________________
>> Leica Users Group.
>> See http://leica-users.org/mailman/listinfo/lug for more information
>> 
> 
> 
> 
> -- 
> // richard <http://www.richardmanphoto.com>
> 
> _______________________________________________
> Leica Users Group.
> See http://leica-users.org/mailman/listinfo/lug for more information
> 



Replies: Reply from red735i at verizon.net (Frank Filippone) ([Leica] The History of the Personal Computer)
In reply to: Message from kanner at acm.org (Herbert Kanner) ([Leica] The History of the Personal Computer)
Message from photo at frozenlight.eu (Nathan Wajsman) ([Leica] The History of the Personal Computer)
Message from richard at richardmanphoto.com (Richard Man) ([Leica] The History of the Personal Computer)