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Technology Stocks : Ampex Corporation (AEXCA)

AMPX 8.770

-14.7%

Dec 17 3:59 PM EST

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To: Hal Campbell who wrote (3859)	11/19/1998 4:02:00 PM
From: Glenn Perry	Read Replies (1) of 17679

I don't know much about partitioning technology, but I do not believe partitioning is a licensed technology. It is merely a method of separating the data on a tape or disk. The partitioning scheme the DST utilizes might be a result of the helical scanning technology used. I'll try to find out more later. I used to back-up an ancient ComputerVision CADDS 4X mainframe CAD workstation set-up on 1/4" magnetic tape. Appending a tape (adding a few files to an existing backup) took forever. You had to load the tape, then it would slowly read thru the entire tape to find the end of data location. It would write the files, rewind to the section and read to verify the write process. Then you had to retension the tape by fast-forwarding to the end, then rewinding to the beginning. You could never add a few files to an existing directory on the tape, that would destroy the data after that section. And high-speed searches were impossible. You had to read the whole tape to get to a file at the end. The DST system incorporates a linear track to aid in searches.

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