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Politics : The Trump Presidency -- Ignore unavailable to you. Want to Upgrade?

To: combjelly who wrote (33612)9/7/2017 10:25:49 PM
From: John Koligman  Read Replies (2) | Respond to of 362996
 
"Grace Hopper used to pass out wires about 11 inches long to illustrate what a nanosecond means to her classes when she gave lectures on computers. And Grace died some years ago."

My wife attended a talk at her IBM site back in the 1980's where Grace was the featured speaker, and she told me that Grace held up that very wire to make her point! She was an incredibly bright and interesting person. A true pioneer.

John



To: combjelly who wrote (33612)9/7/2017 10:41:03 PM
From: koan  Read Replies (1) | Respond to of 362996
 
You know, Einstein spent years thinking:"what is this thing light"??

I always liked that. My kid told me that.

Imagine, what a great question.



To: combjelly who wrote (33612)9/7/2017 11:18:41 PM
From: i-node  Read Replies (1) | Respond to of 362996
 
>>The relevant definition of 'near' is number of hops through the various routers and switches.

No.

Routers and switches are not all alike, and even the timemto get a packet through two identical routers can be different. All this is part of the total latency. And "nearness", when the object is to minimize the metrics on successive hops.


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