Weekly Classic Computer Trivia Question (20141205)
cclist at sydex.com
Sat Dec 6 22:20:56 CST 2014
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
The numbers sound bigger.
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