QMS 1725E, Reference

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Memory
QMS 1725E Print System Reference 5-10
NV RAM
Non-volatile is a protected form of RAM used to store information
such as your printer’s configuration menu. Because its non-volatile,
configuration options you have chosen, such as emulations, memory
settings, and input bins, are not lost when you turn off your printer.
Physical Memory
Physical memory refers to the amount of RAM installed in the printer.
Virtual Memory
Virtual memory extends the effective size of the printer's memory by
using a disk file or swap file to simulate additional memory space. It
enables the hard disk to accept data swapped from RAM to free tem-
porarily the RAM for other tasks.
Flash ROM
Quick loading, reprogrammable memory that holds information even
when the printer is turned off is known as flash ROM. Your QMS
1725E Print System has flash ROM available to hold system code
and future system upgrades. The chief advantage of flash ROM is
that system upgrades can be loaded from a floppy disk without the
necessity of swapping out expensive EPROMS or having to place a
service call.
Spool
Spooling is temporary storage to hold print jobs until the printer is
available to process them.
Evaluation of Your Printing Environment
The first step in allocating your printer’s memory is to define your
printing needs. Each of your printer’s features requires a minimum
amount of memory. If you use a feature, you must allocate enough
memory to the client that controls it. On the other hand, if there are
features you don’t use, you can take the memory in the clients that