On 12/06/2014 06:55 PM, Noel Chiappa wrote:
From: Jerome
H. Fine
I would point out that one reason that memory may
have stayed with 2 **
30 is that memory is usually produced and sold in multiples of 2 ** 30
these days
Main memory has pretty much _always_ been sold in blocks that were exact
powers of two, for obvious reasons (at least, powers of two of the word size
of the machine in question)...
Let's see; IBM 1620--basic memory size=20,000 digits, increments of
20,000 digits up to 60,000. IBM 705, 7080,...
What is curious is the marketing numbers used for the memory size. 65K,
131K, etc. I believe IBM was guilty of this in their S/360 marketing
literature.
The numbers sound bigger.
--Chuck