> Date: Mon, 6 Feb 2012 06:44:22 -0800
> From:
[hidden email]> Subject: Re: SPSS 20 + 64 bit OS
> To:
[hidden email]>
> What for crying out loud are you doing which would conceivably require more
> than 16G.
> AFAIK, Win64 can address MUCH more than 16G. It must be your specific
> computers which will accept no more than 16G.
> I remember when PCs shipped with only 16MB.
The first MAINFRAME that I worked on, at my first job (1968), had 32K
of memory, measured in 16-bit words. The project did not pay
extra to get the 64K version. This was an IBM 1130.
It came with 2 disks drives that used platters of about 12 inch diameter,
with plastic cases about 2 inches tall. Storage per disk was about 5 MB,
as I calculated years later. There was no internal disk. There was a
card reader, a paper-tape reader, and a printer (upper-case only) that
ran at 60 lines per minute. Lower-case did not become widely available
on terminals, etc., until about 1980.
> Before that I recall the old Mac in the lab which had 512K memory.
My first PC was a TI, "IBM-compatible" that cost about $2000. It came
with 64KB of memory, which I later expanded to 640 KB. I wrote a
terminal emulator program in Basic in order to connect to a DEC-10
mainframe which allowed 256K (36-bit words) for its maximum job size.
Submitting jobs of 32K assured faster turn-around.
[snip, previous]
--
Rich Ulrich