Very Large Memory
<architecture> (VLM) A processor
and operating system
that can use more than 4GB of RAM
, which is the limit for systems using 32-bit addresses.
VLM architectures allow application programs and Very Large Databases with more than 4GB of data to be placed entirely in physical memory
, with large performance enhancements.
Some recent processors like the DEC Alpha
can process 64 bits of data at a time and use addresses wider than 32 bits.
Digital Unix (http://www.unix.digital.com/unix/64bit/).
(Unix 98 http://www.UNIX-systems.org/version2/whatsnew/login_64bit.html).
[How wide are the address busses?]