Showing posts with label Datapoint. Show all posts
Showing posts with label Datapoint. Show all posts

Monday, October 19, 2015

8008 Microprocessor and how it became Intel's first 8 bit chip.

Updated 11-7-15
Here is a fascinating story about the how the Intel 8008 microprocessor chip became the first 8 bit chip designed at Intel. The 8008 microprocessor used the logic  of the Datapoint 2200 terminal.


bugbook Historical Microcomputer Museum
Datapoint 2200 terminal 


The Datapoint 2200 terminal - was an 8 bit programmable computer that came to market in 1971 --- way before Apple, IBM or Microsoft.





Datapoint 2200 terminal - audio description of the terminal/ computer and the Datapoint Corporationa and the 8008 microprocessor.

   More information "CLICK"

Here is a good look at the Datapoint Corporation  and a good read - also a lot of early history about the first microprocessor chips and Intel.

"Datapoint - The lost story of the Texans Who Invented the Personal Computer Revolution" by Lamont Wood - ISBN 978-1-936449-36-1
(2010) 325 pages

This book is about "Computer Terminal Corporation" and later known as Datapoint.

If you are interested in the start of the microcomputer revolution and the history of the pioneers - this is a must read book. Amazon Link


Click photo to enlarge 




The Man Who Invented the PC,Invention & Technology, Fall 1994 , by Lamont Wood.







Bugbook Historical Microcomputer Museum
David Larsen
 I have 2 of  the Datapoint terminals in our museum and they always generate a lot of interest and questions for the curator.
           ."by David Larsen"  KK4WW Computer Collector Historian


Saturday, April 25, 2015

8008 &8080 - microprocessor -comments about the origin of Intel's first 8 bit micro chips

Bugbook
Bugbooks
I have had some interesting emails from Jack Frassanito. Jack was brought into Computer Terminal Corporation (later called Datapoint) along with Vic Poor, Jonathan Schmidt, Harry Pyle and a team of designers, engineers and programmers to create the Datapoint 2200. Footnote 1

All the photos below were sent to me by Jack Frassanito and are part of his intellectual property.

"CLICK" on photo's to enlarge
Bugbook Historical Microcomputer Museum
Datapoint 2200
CTC's TTL-based desktop personal 8 bit computer, called the Datapoint 2200, was unveiled in 1970, with cassette tapes for 130KB of mass storage and 8K of internal memory.

The first end user sale was to a chicken farmer in the South who programmed the Datapoint 2200 to write payroll checks. You could say a chicken farmer was the first  user of a programmable personal computer.

The Datapoint 2200 in our Museum is a Datapoint 2200 version II and Jack just furnished more information about the version II - Here are his comments.

"Also the instruction set for the 8080 was also a Datapoint II (less two instructions). So not only was the 8008 a Datapoint computer so was the 8080. The story is in the chapter about Datapoint and Intel. The Datapoint II was an order of magnitude faster than the Datapoint I.

Gus and I argued for owning the rights to the microprocessor but at the time it was easer to upgrade the TTL version and by the time the 8080 was available we were working on a much faster processor.

Chapter 12 (Lamont Wood's book) is a good first person account of how the 8080 came about based on the Datapoint II processor design. (Less two instructions). Dave (Dave Monroe at Datapoint) wrote a translator that would run Datapoint software on the 8080 but it never gained any traction with management. Another dumb mistake.

The 8080 was approximately 100 times faster than the 8008. 

This is significant step in function and solidified the microprocessors place in the history computing."
Footnote 4

Video by Datapoint about the 2200 "CLICK"

The 8 bit computer - Datapoint 1100 "CLICK"

"CLICK" on photo's to enlarge
Bugbook Historical Microcomputer Museum
Datapoint 2200 Patent
"As a named inventor (Jack Frassanito) of the 2200 I also negotiated the original agreement with Bob Noyce of Intel to develop the 8008. It was a fulsome debate at the time and we lost the argument within Datapoint." Footnote 2

Jack is referring to giving up the intellectual rights to the first microprocessor based on the 8 bit computer logic in the 2200. Datapoint  contracted with Intel to design the logic of the 2200 into one chip for $50,000.  However in the end Datapoint agreed to give the rights to Intel and did not pay the $50,000. This became the 8008 microprocessor and launched Intel into the very successful microprocessor business.  

Datapoint gives up right to the 8008 microprocessor - see part of story here "CLICK"

"CLICK" on photo's to enlarge
Bugbook Historical Microcomputer Museum
Datapoint 2200 Patent 




Datapoint 2200.
Patent 224,515 dated July 25,1972 - filed November 27th,1970.









Bugbook Historical Microcomputer Museum
Jack Frassanito, J.Phillip Ray  and Gus Roche
Jack Frassanito, J.Phillip Ray  and Gus Roche at Dr.McClure meeting. They produced the Datapoint 2200 computer and their names are on the U. S. Design patent 223,415 filed November 27,1970. Footnote 1



Gordon Peterson Datapoint
Gordon Peterson 
Gordon Peterson worked for Datapoint for 9 years and had a inside view of the of personalities, creation of products and the rise & fall of the company.


"The Datapoint 2200 was a revolutionary machine for a whole lot of reasons.  It was the first general-purpose computer designed for single-user, desktop use, and that looked more like a piece of office equipment than like a piece of exotic electronics.  I worked in Software Development / Advanced Product Development / R&D at Datapoint for more than 9 years, and it was a very rewarding time.   I designed and wrote the world's first commercially available LAN software there... the company sold over a billion dollars' worth of that product.  I also was the lead developer of the disk operating system there for several years.  A lot of us Datapoint folks are on the DatapointComputers Yahoogroup.  Also, there's a wonderful book about Datapoint's key role in the creation of personal computing... highly recommended." Footnote 3

More info from Gordon Peterson 10-29-15

 I found out about the Datapoint 2200 back about '71-'72, and among other things wrote (in assembler!) a 2200 emulator (which ran Datapoint's Cassette Tape Operating System, CTOS!) that ran on the University's IBM 360/75 mainframe.  ;-)   I showed some of my programs to Datapoint at their booth at the National Computer Conference in Chicago in spring 1974, and by they talked me into moving to San Antonio to work for the company in Software Development.

My first program I wrote there was the REFORMAT utility, and then took over the job of modifying their Disk Operating System to work on the new 25-Mb 2314-type disk drives, and the new 8" floppy diskette drives (and then reworked it for the new 5500 and 6600 series processors).  Wrote several other utilities (and heavily modified many more) and combined the DOS itself and many utilities (and their documentation) into a more cohesive product, which became DOS.B (2200/25Mb), DOS.A (2200/2.5Mb), DOS.C (2200/floppy), DOS.D (5500/25Mb), and DOS.E (5500/2.5Mb).  There was also a DOS.F (5500/floppy), which was never released as a product.

Worked on many other products and internal stuff, including the Partition Supervisor (which could run multiple copies of the DOS on one computer) and then proposed and wrote The ARC System, the world's first commercially available local area network.  That product changed the world of computing forever from monolithic mainframes to modular architectures and incremental expandability.
Footnote 5.

"CLICK" on photo's to enlarge
Bugbook Historical Microcomputer Museum
Story by Lamont Wood

Easy to read text of this article "CLICK"

Story by Lamont Wood. Lamont later wrote the book "Datapoint- The lost Story of the Texans who invented the personal Computer Revolution"

Lamont's book is very interesting and I recommend you read it if you are interested in the first days of the microprocessor and microcomputer revolution.  More information here "CLICK" (Ed S thank you for this link.)





Lamont Wood
Amazon Best  Seller 


Lamont Wood's book "Datapoint- The lost Story of the Texans who invented the personal Computer Revolution" available on Amazon.

My comments about Lamont Woods book.





Information about the Datapoint 1100 "CLICK"


Works cited.
Footnote 1 - Lamont Wood's book "Datapoint- The lost Story of the Texans who invented the personal Computer Revolution" back cover & page 318.
Footnote 2 -This is from email to me from Jack Frassanito Fri, Aug 29, 2014 at 3:23 PM.
Footnote 3- This is from email to me from Gordon Peterson.
Footnote 4- Email sent to me Sat, Apr 25, 2015 at 3:19 AM.
Footnote 5- From Comment By Gordon Peterson on this blog a posted October 19,2015.

David G Larsen
David Larsen
The email's from Jack Frassanito and Gordon Peterson gave me some great inside information about the Datapoint 8 bit computer story. I recommend reading Lamont Wood's book - lots of info about the development of the first microprocessor at Intel as well as the Datapoint story.


Sunday, March 22, 2015

Computer Museum Visitors - love the retro game stations

Bugbooks
info click
Sorry I have not written a post in the last several weeks . My wife and I got the flu bug about the time we returned from our mission trip to Dominica and it has really shut down our energy and ability to do hardly anything.  We are feeling better now but still very low on energy. I have not felt like this for years - in fact we always comment on how we hardly ever get sick - but this was different. Sure hope you don't get this - some of our friends have been effected for 4 to 5 weeks.

Had a great day at the museum with friend and museum donor Nathaniel Frissell.  Nathaniel brought three of his graduate student associates from Virginia Tech. I always enjoy telling the history about various computers in the museum and 2 computers really caught there interest.

Click on photo to enlarge
David larsen KK4WW N4USA
Autonetics REcomp computer 
The first one to stop them in there tracks for more information was this Autonetics Recomp 501 computer. More information here "CLICK"
This model is reported to be the first commercial transistor computer - 1958- and we have  serial number 003 and we may have the oldest commercial built transistor computer in the world.


bugbook historical micrcomputer museum
Datapoint 2200 programmable terminal 1971
The second stop for the group was the 1971 Datapoint 2200 programmable terminal. The story of this  terminal built around an 8 bit computer is a fascinating and many retro computer people do not know this important history --- This was the  origin  of the first 8 bit microcomputer - The Intel 8008 in 1972.

This story is well told in Lamont Woods book about Datapont. Read more here "CLICK"
I will be posting more about this fascinating and important story in future blogs.


bugbook historical micrcomputer museum
Bugbook and Blacksburg book display 


Hunter Burch (L) and myself by the Bugbook and Blacksburg series of books that I and several others produced in the 70's and early 80's. Hunter has a friend back home in Alburn Ga that has some of the books and asked Hunter to be sure to talk to me about the books.






david Larsen KK4WW N4usa
Nathaniel Frissell & reto game stations

Nathaniel Frissell is proud of this photo. He should be as he made a large donation of Commodore and  other computers to our museum. All three of the operational retro game stations we have in the museum are made from his donated computers.
The game stations are a real popular and everyone loves playing these computer games that are 25 to 30 years old.





bugbook historical micrcomputer museum
Visitors from Virginia Tech 

Here is Nathaniel and his friends from Virginia Tech in front of our Apple-l display.
L-R Brian Dowd - assistant museum curator, Nathaniel Frissell, Deirdre Beggs, Hunter Burch, Andrew Kinlz.  Brian is a student at Floyd High School and Nathaniel and his friend are all students at Virginia Tech. Virginia Tech(VT) brings back many fond memories of my 31 years as a faculty member their teaching "Instrumentation and automation".



Bugbook Historical Microcomputer Museum
David Larsen
The  museum visitors from Virginia Tech were a real pleasure. Nathaniel donated a large group of Commodore computers last year and they were used to set up our retro gaming stations. He was very happy to see them in use and tell his friends about them. I am happy to greet all visitors however it is special when they are from Virginia Tech where I spent 31 years of my professional career.
           ."by David Larsen"  KK4WW Computer Collector Historian