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Politics : Formerly About Advanced Micro Devices -- Ignore unavailable to you. Want to Upgrade?

To: Tenchusatsu who wrote (402034)7/26/2008 2:29:30 PM
From: i-node  Read Replies (1) | Respond to of 1575771
 
How do you backup 3,000 punch cards, anyway? You'd need another 3,000 punch cards ..

Exactly.

At the time, every computer center had an array of punched card support devices -- duplicators, sequencers, sorters, etc -- all electro-mechanical devices.

Of course, source could have been stored on the University's mainframe -- but you only had limited time and storage. There was a "scratch list" posted every Monday that would list every user file due to be scratched by a certain date.

Working with punched cards DID, however, develop my typing skills.



To: Tenchusatsu who wrote (402034)7/26/2008 2:56:36 PM
From: combjelly  Respond to of 1575771
 
"hard drives the size of washers and dryers, etc."

That was much later in the game.

The RAMAC was a lot larger.

en.wikipedia.org

What you are talking about were the 14 inch drives. The industry started to switch to 8 inch drives in the early 1980s and Shugart introduced the first 5.25 inch drives in about the same time frame. Maybe a year or two later.


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