Re: Possible bridges between OO programming proponents and relational model
Date: 4 Jun 2006 20:56:14 -0700
Message-ID: <1149479774.284690.288710_at_f6g2000cwb.googlegroups.com>
Cimode wrote :
> Bob Badour :
> > What are the two dimensions? Can you name them?
>
> For bidimensional RAM's, the 2 dimensions are RowAddress
> and ColumnAddress For tridimensional RAM's (64bit
> architectures) the 3 dimensions are Block Adress,
> RowAddress, ColumnAddress Does that make sense? It was
> written above.
Suppose we have a 16-bit architecture with 2^16 memory cells. How many dimensions is the memory?
Suppose we call the 16-bit tuple "address". Is the physical memory now 1-dimensional?
Without changing the physical architechure, suppose we mentally partition the 16 bits into two 8-bit tuples and call one "hi_reg" and the other "lo_reg". Is the physical memory now 2-dimensional or is it still 1-dimensional?
Suppose instead we give names to each of the 16 bits. Something like:
0 : pinky 8 : box 1 : bit 9 : crate 2 : crumb 10 : pallet 3 : chunk 11 : container 4 : unit 12 : truck 5 : finger 13 : train 6 : bar 14 : house 7 : pack 15 : big_dog
Is the physical memory now a 16-dimensional hyper-cube?
- Keith --