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Images of Club activities, Click on pictures for larger view.
Computer Talk, May 18, 2006
Mac SIG
Revised Laboratory Layout
Instructors preparing for Internet Class
Macintosh Special Interest Group, February 12, 2004
Thanks to Bob Mitchell for the above scenes of the Koffeeless Klatch on
January 2, 2003
The above images were taken at the Open House December 15, 2001
If you have images that should be added to this page, please
contact the visit the Contact Us page.
A moment in computing history
The following moment in history took place during the early
stages of computer usage for business data processing. Club
members are invited to complete the form on the Contact Us page for instructions
on for transmittal. "antique" images to with a brief description
as presented below are welcome!
 This
image may be referred to as "ancient history." It is an image of
your Club's 2002 President, Chuck Davis. He is seated at the console of an
IBM 705 Data Processing Machine in October 1957, at the Detroit Edison
Company's computer room. At the time he was a programmer and
is showing some of the operational features to Mr. Roger Van Mele, Belgian Minister
of Information (center) while the Manager of Planning and Programming looks on. At
the time the photo was taken, the 705 had a RAM memory capacity of 10,000
characters! Non-volatile memory consisted of 1/2 inch wide magnetic tape
that had a
density of 200 characters per inch! Iron filings and a jewelers loupe
enabled one to read the 7-bit code on the tape for data recovery purposes.Programs were entered into memory from punched cards. Though the cards
were 80 characters in length, actual 5-character instructions were limited to 60
characters. The card reader could read 200 cards per minute. The nightly
processing time for the records of 37,500 customers was approximately ten
hours, this cycle was repeated five nights a week, four weeks each month
to process the company's 1,500,000 customer accounts.
Chuck Davis |
IBM 305 RAMAC in 1956. 5MB storage.
This was the first disk with the “Winchester” technology. When the project
first got started in 1953, the engineers were making little progress in
their downtown San Jose, CA laboratory. By the end of 54, the Corporate
bigwigs, killed the project. The engineers, being very crafty, got budget
money for a new project with the code name "Winchester." San Jose was also
the home of the Winchester Mystery House. This time they succeeded in
producing a product that entered production. The term Winchester has
followed to this day on almost every disk drive manufactured.
http://www.winchestermysteryhouse.com/story.html
Chuck Davis |
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